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ROLLOUT 4 · Stratoscale/skipper

Stratoscale__skipper-164

Solved
332 stotal time
22tool calls
24model calls
4,126tokens generated
188,291prompt tokens read

No error recorded

⚠ The request log has 23 model calls but the trace has 25 agent calls, so tokens are listed separately instead of beside each turn.

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System instructions 4,822 characters
You are a principal Python software engineer resolving a repository issue in `/workspace`.
Your sole objective is to produce a minimal, root-cause source patch that passes every hidden fail-to-pass and pass-to-pass regression test on the first grading run.

## Critical Environment & Grader Rules
1. **Air-Gapped Sandbox & Available CLI Tools**: No network access. Never run `pip`, `uv`, `conda`, or `git fetch`. Note: `rg` (`ripgrep`) is NOT installed in the container — always use `grep -rn --include="*.py"` for fast exact searches so you never waste a tool call on `command not found`.
2. **Protected Grading Paths**: Before running official verification, the grading harness **strips and reverts all changes** to `tests/`, `test/`, `testing/`, `test_*.py`, `*_test.py`, `conftest.py`, `pyproject.toml`, `setup.cfg`, `pytest.ini`, and `tox.ini`. Every part of your fix MUST reside in non-test production source files.
3. **Untracked File Trap (`git add -N .`)**: `submit_patch` stages ALL untracked files inside `/workspace`! Never leave reproduction or scratch files inside `/workspace` — run reproductions inline via `python3 - <<'PY'` or inside `/tmp/repro.py` in a single `run_command`.
4. **Stdout Truncation Rule**: `run_command` truncates stdout after the first 5,000 characters from the TOP. Always run pytest quietly with short tracebacks:
   `pytest path/to/test_file.py -k pattern -q --tb=short --no-header`
   If a test file is large, redirect output to `/tmp/pytest.log` and inspect `tail -n 80 /tmp/pytest.log` so failure tracebacks at the bottom are never cut off.
5. **Strict Pacing Discipline**: `get_status` and `submit_patch` are free and do NOT count toward `max_tool_calls`. Target **16-22 counted tool calls total**, and **begin your first `edit_file` change no later than tool call 15**. Reserve at least 4 calls for verification, `git status --short && git diff`, and submission.

## Execution Protocol

### Phase 1 — Pinpoint Code & Tests Immediately (1-2 tool calls)
- The user message already contains `Workspace Layout` — do NOT waste a turn running `ls` on top-level directories.
- Run a single compound `run_command` with `grep -rn --include="*.py"` to locate:
  (a) the exact symbols, error strings, or functions from the problem description,
  (b) **all parallel or sibling implementations** (for example sync + async variants, `Client` + `AsyncClient`, serializer + deserializer, multiple backends/dialects, base + subclass methods, `__init__.py` / `__all__` exports), and
  (c) the closest existing unit test files under `tests/`.

### Phase 2 — Deep Read & Spec Anchor (2-5 tool calls)
- Use `read_file` with generous `start_line` and `end_line` windows (180-300 lines per call so you read whole modules in fewer calls) on the target function/class, callers, type annotations, and neighboring tests.
- Before editing, verify every explicit and implicit requirement from the issue: exact parameter names, defaults, boundary/domain edge cases, exception types/messages, `None` vs empty collection vs falsy (`0`, `False`, `""`) semantics, mutability/copying, and return types.

### Phase 3 — Reproduce Bug in One Call (1 tool call)
- Run ONE concise command (`python3 - <<'PY' ... PY` or targeted `pytest ... -q --tb=short --no-header`) via `run_command` to observe the exact pre-fix failure. Do NOT spend multiple tool calls writing separate reproduction scripts.

### Phase 4 — Surgical Implementation Across All Parallel Paths (1-4 tool calls)
- Begin editing by tool call 15! Use `edit_file` with 4-6 lines of exact surrounding context copied from `read_file`.
- Update ALL parallel codepaths (sync/async, multiple classes/dialects, type hints) consistently so partial fixes do not fail sibling tests.
- **2-Strike Edit Rule**: If `edit_file` fails twice on the same block due to whitespace or escaping, do not retry `edit_file` a third time — apply an atomic Python transformation via `run_command` and immediately verify `python3 -m py_compile path/to/file.py`.

### Phase 5 — Edge-Case Verification, Diff Hygiene & Clean Exit (2-4 tool calls)
- Run a single compound `run_command` testing both your reproduction + boundary edge cases (`None`, empty input, leading/trailing delimiters, subdomain/prefix boundaries, subclass/async parity) AND the relevant existing `pytest` module(s) with `-q --tb=short --no-header`.
- Run `git status --short && git diff` via `run_command`. Confirm:
  - ZERO untracked (`??`) files in `/workspace` (`rm -f` any untracked workspace files immediately),
  - ZERO modifications to `tests/` or protected config files (`git checkout -- tests/` if touched),
  - Minimal, clean diff with valid imports and indentation.
- Call `submit_patch` once verification passes, then respond with a brief 2-sentence plain-text summary and make NO further tool calls.
Task prompt 3,564 characters
You are evaluating a software engineering task for repository Stratoscale/skipper.

Problem Statement:
can't build skipper (skipper build cmd) with v2.0.0 and v2.0.1
See $TOPIC.

I get:

# skipper build
```python
WARNING:root:*** Uncommitted changes present - Build container version might be outdated ***
[skipper] Building image: assisted-service-build
INFO:skipper:Building image: assisted-service-build
Traceback (most recent call last):
  File "/usr/local/bin/skipper", line 10, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.9/site-packages/skipper/main.py", line 12, in main
    return_code = cli.cli(
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.9/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/skipper/cli.py", line 117, in build
    fqdn_image = image + ':' + tag
TypeError: can only concatenate str (not "bytes") to str
```

## Hints:
eifrach: @eranco74   -  can you please review
eifrach: @eranco74  /retest please  :)

## Task Budget (Session terminates when any budget is exhausted)
- Time allowance: 7.5 minutes
- Tool calls allowance: 30 calls
- Max loop iterations: 40 turns

## Execution Environment Rules
- Single command timeout: 90 seconds (commands exceeding this fail without ending the session)
- Command output limit: 5000 characters
- File view limit: 150 lines per read_file call
- File character limit: 10000 characters per read_file call
- Environment is offline (no network/PyPI access). All repository and test dependencies are ALREADY pre-installed. Do NOT attempt to run pip install or download packages.

## Instructions:
0. All source code is under `/workspace`. Do NOT search outside `/workspace` (e.g. `/usr/`, `/wheels/`, system site-packages). If imports fail, the issue is in the source code under `/workspace`, not in missing system packages.
1. Analyze the problem statement and any provided hints carefully to identify all requested script paths, CLI subcommands, or Python modules.
2. Inspect existing codebase conventions and test files before making edits.
3. Verify your implementation using targeted tests or inline assertions before submitting.
4. Call submit_patch only after your implementation is complete and verified.
5. As your final action, you must return a text-only response reporting your completion to terminate the session.
## Workspace Layout
The repository is located at `/workspace`. Here is the directory tree (up to 3 levels):
```
./Dockerfile.skipper-build
./LICENSE
./MANIFEST.in
./Makefile
./README.md
./dev-requirements.txt
./requirements.txt
./setup.cfg
./setup.py
./skipper
./skipper.yaml
./skipper/__init__.py
./skipper/cli.py
./skipper/config.py
./skipper/data
./skipper/data/skipper-complete.sh
./skipper/data/skipper-entrypoint.sh
./skipper/git.py
./skipper/main.py
./skipper/runner.py
./skipper/utils.py
./tests
```
Turn 1at 12 s145 tokens out3,124 prompt tokens
The user is reporting a `TypeError: can only concatenate str (not "bytes") to str` in `skipper/cli.py` at line 117 when running `skipper build`.
The line is `fqdn_image = image + ':' + tag`.
This suggests that either `image` or `tag` (or both) are `bytes` instead of `str`.

Let's start by examining `skipper/cli.py` around line 117.
TOOL CALL · read_file
{
  "end_line": 130,
  "filepath": "skipper/cli.py",
  "start_line": 100
}
Result of read_file 1,543 characters
{
  "status": "ok",
  "filepath": "skipper/cli.py",
  "content": "    if not images_to_build:\n        valid_images_to_build = valid_images\n    else:\n        for image in images_to_build:\n            if image not in valid_images:\n                utils.logger.warning('Image %s is not valid for this project! Skipping...', image)\n                continue\n            valid_images_to_build[image] = valid_images[image]\n\n    tag = git.get_hash()\n    for image, dockerfile in six.iteritems(valid_images_to_build):\n        utils.logger.info('Building image: %s', image)\n\n        if not os.path.exists(dockerfile):\n            utils.logger.warning('File %s does not exist! Skipping...', dockerfile)\n            continue\n\n        fqdn_image = image + ':' + tag\n        if container_context is not None:\n            build_context = container_context\n        elif ctx.obj['container_context']:\n            build_context = ctx.obj['container_context']\n        else:\n            build_context = os.path.dirname(dockerfile)\n        command = ['build', '--network=host', '--build-arg', f'TAG={tag}',\n                   '-f', dockerfile, '-t', fqdn_image, build_context]\n        if cache:\n            cache_image = utils.generate_fqdn_image(ctx.obj['registry'], namespace=None, image=image, tag=DOCKER_TAG_FOR_CACHE)\n            runner.run(['pull', cache_image])\n            command.extend(['--cache-from', cache_image])\n        ret = runner.run(command)",
  "start_line": 100,
  "end_line": 130,
  "total_lines": 485,
  "is_truncated": false
}
Turn 2at 21 s186 tokens out3,734 prompt tokens
The error happens at line 117: `fqdn_image = image + ':' + tag`.
We need to see where `image` and `tag` come from.
`tag = git.get_hash()`
`for image, dockerfile in six.iteritems(valid_images_to_build):`

`valid_images_to_build` is derived from `valid_images` and `images_to_build`.
Where are `valid_images` and `images_to_build` defined?
And where is `git.get_hash()` defined?

Let's look at the rest of the `build` function in `skipper/cli.py`.
TOOL CALL · read_file
{
  "end_line": 116,
  "filepath": "skipper/cli.py",
  "start_line": 80
}
Result of read_file 1,764 characters
{
  "status": "ok",
  "filepath": "skipper/cli.py",
  "content": "    ctx.obj['workdir'] = ctx.default_map.get('workdir')\n    ctx.obj['workspace'] = ctx.default_map.get('workspace', None)\n    ctx.obj['container_context'] = ctx.default_map.get('container_context')\n    utils.set_remote_registry_login_info(registry, ctx.obj)\n\n\n@cli.command()\n@click.argument('images_to_build', nargs=-1, metavar='[IMAGE...]')\n@click.option('--container-context', help='Container context path', default=None)\n@click.option('-c', '--cache', help='Use cache image', is_flag=True, default=False, envvar='SKIPPER_USE_CACHE_IMAGE')\n@click.pass_context\ndef build(ctx, images_to_build, container_context, cache):\n    \"\"\"\n    Build a container\n    \"\"\"\n    utils.logger.debug(\"Executing build command\")\n\n    valid_images = ctx.obj.get('containers') or utils.get_images_from_dockerfiles()\n    valid_images = {image: os.path.abspath(dockerfile) for image, dockerfile in six.iteritems(valid_images)}\n    valid_images_to_build = {}\n    if not images_to_build:\n        valid_images_to_build = valid_images\n    else:\n        for image in images_to_build:\n            if image not in valid_images:\n                utils.logger.warning('Image %s is not valid for this project! Skipping...', image)\n                continue\n            valid_images_to_build[image] = valid_images[image]\n\n    tag = git.get_hash()\n    for image, dockerfile in six.iteritems(valid_images_to_build):\n        utils.logger.info('Building image: %s', image)\n\n        if not os.path.exists(dockerfile):\n            utils.logger.warning('File %s does not exist! Skipping...', dockerfile)\n            continue\n",
  "start_line": 80,
  "end_line": 116,
  "total_lines": 485,
  "is_truncated": false
}
Turn 3at 25 s46 tokens out4,480 prompt tokens
Now let's look at `skipper/git.py` to see what `get_hash()` returns.
TOOL CALL · read_file
{
  "filepath": "skipper/git.py"
}
Result of read_file 832 characters
{
  "status": "ok",
  "filepath": "skipper/git.py",
  "content": "import os.path\nimport logging\nimport subprocess\n\n\ndef get_hash(short=False):\n    if not os.path.exists('.git'):\n        logging.warning('*** Not working in a git repository ***')\n        return 'none'\n\n    git_command = ['git', 'rev-parse']\n    if short:\n        git_command += ['--short']\n    git_command += ['HEAD']\n\n    if uncommitted_changes():\n        logging.warning(\"*** Uncommitted changes present - Build container version might be outdated ***\")\n\n    return subprocess.check_output(git_command).strip()\n\n\ndef uncommitted_changes():\n    \"\"\"Return True is there are uncommitted changes.\"\"\"\n    return subprocess.call(['git', 'diff', '--quiet', 'HEAD']) != 0",
  "start_line": 1,
  "end_line": 24,
  "total_lines": 24,
  "is_truncated": false
}
Turn 4at 41 s214 tokens out4,798 prompt tokens
`subprocess.check_output(git_command).strip()` returns `bytes` in Python 3.
That's the root cause. `tag` is `bytes`, while `image` and `:` are `str`.

Let's verify this with a reproduction script.
TOOL CALL · run_command
{
  "command": "python3 - <<'PY'\nimport subprocess\ngit_command = ['git', 'rev-parse', 'HEAD']\n# We need to be in a git repo for this to work.\n# The environment probably is.\ntry:\n    res = subprocess.check_output(git_command).strip()\n    print(f\"Type of res: {type(res)}\")\n    image = \"test-image\"\n    print(f\"Concatenating: {image} + ':' + {res}\")\n    print(image + ':' + res)\nexcept Exception as e:\n    print(f\"Exception: {e}\")\nPY\n"
}
Result of run_command 229 characters
{
  "status": "ok",
  "stdout": "Type of res: <class 'bytes'>\nConcatenating: test-image + ':' + b'677976b645749d6dc2a2d531f0fd71fd293f32ba'\nException: can only concatenate str (not \"bytes\") to str\n",
  "stderr": "",
  "exit_code": 0
}
Turn 5at 51 s148 tokens out5,126 prompt tokens
Exactly. `subprocess.check_output` returns `bytes`.

The fix is to decode the output of `subprocess.check_output` to `utf-8`.

Let's see if `get_hash` is used anywhere else, or if other functions in `git.py` have similar issues.

`get_hash` is the only function returning the result of `subprocess.check_output`.
Wait, `uncommitted_changes` uses `subprocess.call`, which returns an integer.

Let's check where `get_hash` is called in the codebase.
TOOL CALL · run_command
{
  "command": "grep -rn \"get_hash\" ."
}
Result of run_command 2,966 characters
{
  "status": "ok",
  "stdout": "./skipper/cli.py:76:    ctx.obj['build_container_tag'] = git.get_hash() if ctx.obj['git_revision'] else build_container_tag\n./skipper/cli.py:109:    tag = git.get_hash()\n./skipper/cli.py:156:    tag = git.get_hash()\n./skipper/git.py:6:def get_hash(short=False):\n./tests/test_git.py:13:    def test_get_hash_with_default_argument(self, exists_mock, check_output_mock):\n./tests/test_git.py:14:        git_hash = git.get_hash()\n./tests/test_git.py:22:        git_hash = git.get_hash(short=False)\n./tests/test_git.py:30:        git_hash = git.get_hash(short=True)\n./tests/test_git.py:38:        git_hash = git.get_hash()\n./tests/test_cli.py:252:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:275:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:304:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:326:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:352:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:368:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:394:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:418:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:443:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:470:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:493:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:511:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:537:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:562:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:588:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:614:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:630:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:657:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n./tests/test_cli.py:686:    @mock.patch('skipper.git.get_hash', mock.MagicMock(autospec=True, return_value='1234567'))\n",
  "stderr": "",
  "exit_code": 0
}
Turn 6at 59 s147 tokens out6,552 prompt tokens
The calls are in `skipper/cli.py` and `tests/test_git.py` and `tests/test_cli.py`.
The issue is definitely in `skipper/git.py`.

I will change `return subprocess.check_output(git_command).strip()` to `return subprocess.check_output(git_command).decode('utf-8').strip()`.

Wait, `subprocess.check_output` can take `text=True` (or `universal_newlines=True`) in Python 3.7+.
Checking Python version in the environment:
TOOL CALL · run_command
{
  "command": "python3 --version"
}
Result of run_command 76 characters
{
  "status": "ok",
  "stdout": "Python 3.10.19\n",
  "stderr": "",
  "exit_code": 0
}
Turn 7at 64 s76 tokens out6,748 prompt tokens
Since it's Python 3.10, I can use `text=True`.
However, using `.decode('utf-8')` is also perfectly fine and very explicit.

Let's see `skipper/git.py` again.
TOOL CALL · read_file
{
  "filepath": "skipper/git.py"
}
Result of read_file 832 characters
{
  "status": "ok",
  "filepath": "skipper/git.py",
  "content": "import os.path\nimport logging\nimport subprocess\n\n\ndef get_hash(short=False):\n    if not os.path.exists('.git'):\n        logging.warning('*** Not working in a git repository ***')\n        return 'none'\n\n    git_command = ['git', 'rev-parse']\n    if short:\n        git_command += ['--short']\n    git_command += ['HEAD']\n\n    if uncommitted_changes():\n        logging.warning(\"*** Uncommitted changes present - Build container version might be outdated ***\")\n\n    return subprocess.check_output(git_command).strip()\n\n\ndef uncommitted_changes():\n    \"\"\"Return True is there are uncommitted changes.\"\"\"\n    return subprocess.call(['git', 'diff', '--quiet', 'HEAD']) != 0",
  "start_line": 1,
  "end_line": 24,
  "total_lines": 24,
  "is_truncated": false
}
Turn 8at 68 s85 tokens out7,096 prompt tokens
I'll apply the fix in `skipper/git.py`.
TOOL CALL · edit_file
{
  "filepath": "skipper/git.py",
  "new_string": "    return subprocess.check_output(git_command).decode('utf-8').strip()",
  "old_string": "    return subprocess.check_output(git_command).strip()"
}
Result of edit_file 496 characters
{
  "status": "ok",
  "filepath": "skipper/git.py",
  "occurrences": 1,
  "strategy": "exact",
  "diff": "--- a/skipper/git.py\n+++ b/skipper/git.py\n@@ -16,7 +16,7 @@\n     if uncommitted_changes():\n         logging.warning(\"*** Uncommitted changes present - Build container version might be outdated ***\")\n \n-    return subprocess.check_output(git_command).strip()\n+    return subprocess.check_output(git_command).decode('utf-8').strip()\n \n \n def uncommitted_changes():\n",
  "is_truncated": false
}
Turn 9at 77 s130 tokens out7,357 prompt tokens
Now let's verify the fix with the reproduction script again.
TOOL CALL · run_command
{
  "command": "python3 - <<'PY'\nimport subprocess\nfrom skipper import git\ngit_hash = git.get_hash()\nprint(f\"Type of git_hash: {type(git_hash)}\")\nprint(f\"git_hash value: {git_hash}\")\nimage = \"test-image\"\nprint(f\"Concatenating: {image} + ':' + {git_hash}\")\nprint(image + ':' + git_hash)\nPY\n"
}
Result of run_command 374 characters
{
  "status": "ok",
  "stdout": "Type of git_hash: <class 'str'>\ngit_hash value: 677976b645749d6dc2a2d531f0fd71fd293f32ba\nConcatenating: test-image + ':' + 677976b645749d6dc2a2d531f0fd71fd293f32ba\ntest-image:677976b645749d6dc2a2d531f0fd71fd293f32ba\n",
  "stderr": "WARNING:root:*** Uncommitted changes present - Build container version might be outdated ***\n",
  "exit_code": 0
}
Turn 10at 82 s79 tokens out7,693 prompt tokens
The reproduction script now works.
Now let's run existing tests to make sure I haven't broken anything.
I'll run tests for `git` and `cli`.
TOOL CALL · run_command
{
  "command": "pytest tests/test_git.py tests/test_cli.py -q --tb=short --no-header"
}
Result of run_command 10,299 characters
{
  "status": "error",
  "error_type": "CommandError",
  "error_message": "FFF.........................................FF.......................... [ 91%]\n.......                                                                  [100%]\n=================================== FAILURES ===================================\n__________________________ TestGit.test_get_full_hash __________________________\ntests/test_git.py:22: in test_get_full_hash\n    git_hash = git.get_hash(short=False)\nskipper/git.py:19: in get_hash\n    return subprocess.check_output(git_command).decode('utf-8').strip()\nE   AttributeError: 'str' object has no attribute 'decode'. Did you mean: 'encode'?\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_________________ TestGit.test_get_hash_with_default_argument __________________\ntests/test_git.py:14: in test_get_hash_with_default_argument\n    git_hash = git.get_hash()\nskipper/git.py:19: in get_hash\n    return subprocess.check_output(git_command).decode('utf-8').strip()\nE   AttributeError: 'str' object has no attribute 'decode'. Did you mean: 'encode'?\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_________________________ TestGit.test_get_short_hash __________________________\ntests/test_git.py:30: in test_get_short_hash\n    git_hash = git.get_hash(short=True)\nskipper/git.py:19: in get_hash\n    return subprocess.check_output(git_command).decode('utf-8').strip()\nE   AttributeError: 'str' object has no attribute 'decode'. Did you mean: 'encode'?\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_ TestCLI.test_run_with_config_including_git_revision_with_uncommitted_changes _\ntests/test_cli.py:1695: in test_run_with_config_including_git_revision_with_uncommitted_changes\n    skipper_runner_run_mock.assert_called_once_with(command, fqdn_image=expected_fqdn_image, environment=[],\n/usr/local/lib/python3.10/site-packages/mock/mock.py:253: in assert_called_once_with\n    return mock.assert_called_once_with(*args, **kwargs)\n/usr/local/lib/python3.10/site-packages/mock/mock.py:1004: in assert_called_once_with\n    raise AssertionError(msg)\nE   AssertionError: Expected 'run' to be called once. Called 0 times.\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_ TestCLI.test_run_with_config_including_git_revision_without_uncommitted_changes _\ntests/test_cli.py:1716: in test_run_with_config_including_git_revision_without_uncommitted_changes\n    skipper_runner_run_mock.assert_called_once_with(command, fqdn_image=expected_fqdn_image, environment=[],\n/usr/local/lib/python3.10/site-packages/mock/mock.py:253: in assert_called_once_with\n    return mock.assert_called_once_with(*args, **kwargs)\n/usr/local/lib/python3.10/site-packages/mock/mock.py:1004: in assert_called_once_with\n    raise AssertionError(msg)\nE   AssertionError: Expected 'run' to be called once. Called 0 times.\n=============================== warnings summary ===============================\n../usr/local/lib/python3.10/site-packages/click/core.py:1219\n  /usr/local/lib/python3.10/site-packages/click/core.py:1219: DeprecationWarning: invalid escape sequence '\\s'\n    \"\"\"A parameter to a command comes in two versions: they are either\n\n../usr/local/lib/python3.10/site-packages/click/_compat.py:14\n  /usr/local/lib/python3.10/site-packages/click/_compat.py:14: DeprecationWarning: invalid escape sequence '\\['\n    _ansi_re = re.compile('\\033\\[((?:\\d|;)*)([a-zA-Z])')\n\n../usr/local/lib/python3.10/site-packages/click/decorators.py:93\n  /usr/local/lib/python3.10/site-packages/click/decorators.py:93: DeprecationWarning: invalid escape sequence '\\s'\n    \"\"\"Creates a new :class:`Command` and uses the decorated function as\n\nskipper/cli.py:12\n  /workspace/skipper/cli.py:12: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.\n    from pkg_resources import get_distribution\n\n../usr/local/lib/python3.10/site-packages/requests_bearer/requests_bearer.py:19\n  /usr/local/lib/python3.10/site-packages/requests_bearer/requests_bearer.py:19: DeprecationWarning: invalid escape sequence '\\w'\n    params = dict(re.findall('(\\w+)=\"([^\"]+)\",?', response.headers['WWW-Authenticate'][7:]))\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n=========================== short test summary info ============================\nFAILED tests/test_git.py::TestGit::test_get_full_hash - AttributeError: 'str'...\nFAILED tests/test_git.py::TestG",
  "details": {
    "stdout": "FFF.........................................FF.......................... [ 91%]\n.......                                                                  [100%]\n=================================== FAILURES ===================================\n__________________________ TestGit.test_get_full_hash __________________________\ntests/test_git.py:22: in test_get_full_hash\n    git_hash = git.get_hash(short=False)\nskipper/git.py:19: in get_hash\n    return subprocess.check_output(git_command).decode('utf-8').strip()\nE   AttributeError: 'str' object has no attribute 'decode'. Did you mean: 'encode'?\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_________________ TestGit.test_get_hash_with_default_argument __________________\ntests/test_git.py:14: in test_get_hash_with_default_argument\n    git_hash = git.get_hash()\nskipper/git.py:19: in get_hash\n    return subprocess.check_output(git_command).decode('utf-8').strip()\nE   AttributeError: 'str' object has no attribute 'decode'. Did you mean: 'encode'?\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_________________________ TestGit.test_get_short_hash __________________________\ntests/test_git.py:30: in test_get_short_hash\n    git_hash = git.get_hash(short=True)\nskipper/git.py:19: in get_hash\n    return subprocess.check_output(git_command).decode('utf-8').strip()\nE   AttributeError: 'str' object has no attribute 'decode'. Did you mean: 'encode'?\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_ TestCLI.test_run_with_config_including_git_revision_with_uncommitted_changes _\ntests/test_cli.py:1695: in test_run_with_config_including_git_revision_with_uncommitted_changes\n    skipper_runner_run_mock.assert_called_once_with(command, fqdn_image=expected_fqdn_image, environment=[],\n/usr/local/lib/python3.10/site-packages/mock/mock.py:253: in assert_called_once_with\n    return mock.assert_called_once_with(*args, **kwargs)\n/usr/local/lib/python3.10/site-packages/mock/mock.py:1004: in assert_called_once_with\n    raise AssertionError(msg)\nE   AssertionError: Expected 'run' to be called once. Called 0 times.\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_ TestCLI.test_run_with_config_including_git_revision_without_uncommitted_changes _\ntests/test_cli.py:1716: in test_run_with_config_including_git_revision_without_uncommitted_changes\n    skipper_runner_run_mock.assert_called_once_with(command, fqdn_image=expected_fqdn_image, environment=[],\n/usr/local/lib/python3.10/site-packages/mock/mock.py:253: in assert_called_once_with\n    return mock.assert_called_once_with(*args, **kwargs)\n/usr/local/lib/python3.10/site-packages/mock/mock.py:1004: in assert_called_once_with\n    raise AssertionError(msg)\nE   AssertionError: Expected 'run' to be called once. Called 0 times.\n=============================== warnings summary ===============================\n../usr/local/lib/python3.10/site-packages/click/core.py:1219\n  /usr/local/lib/python3.10/site-packages/click/core.py:1219: DeprecationWarning: invalid escape sequence '\\s'\n    \"\"\"A parameter to a command comes in two versions: they are either\n\n../usr/local/lib/python3.10/site-packages/click/_compat.py:14\n  /usr/local/lib/python3.10/site-packages/click/_compat.py:14: DeprecationWarning: invalid escape sequence '\\['\n    _ansi_re = re.compile('\\033\\[((?:\\d|;)*)([a-zA-Z])')\n\n../usr/local/lib/python3.10/site-packages/click/decorators.py:93\n  /usr/local/lib/python3.10/site-packages/click/decorators.py:93: DeprecationWarning: invalid escape sequence '\\s'\n    \"\"\"Creates a new :class:`Command` and uses the decorated function as\n\nskipper/cli.py:12\n  /workspace/skipper/cli.py:12: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.\n    from pkg_resources import get_distribution\n\n../usr/local/lib/python3.10/site-packages/requests_bearer/requests_bearer.py:19\n  /usr/local/lib/python3.10/site-packages/requests_bearer/requests_bearer.py:19: DeprecationWarning: invalid escape sequence '\\w'\n    params = dict(re.findall('(\\w+)=\"([^\"]+)\",?', response.headers['WWW-Authenticate'][7:]))\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n=========================== short test summary info ============================\nFAILED tests/test_git.py::TestGit::test_get_full_hash - AttributeError: 'str'...\nFAILED tests/test_git.py::TestG",
    "stderr": "",
    "exit_code": 1
  }
}
Turn 11at 89 s82 tokens out10,919 prompt tokens
Wait, the tests failed with `AttributeError: 'str' object has no attribute 'decode'`.
This means `subprocess.check_output(git_command)` is returning a `str` during tests.
Why?
Looking at `tests/test_git.py`:
TOOL CALL · read_file
{
  "filepath": "tests/test_git.py"
}
Result of read_file 1,970 characters
{
  "status": "ok",
  "filepath": "tests/test_git.py",
  "content": "import unittest\nimport mock\nfrom skipper import git\n\n\nGIT_HASH_FULL = '00efe974e3cf18c3493f110f5aeda04ff78b125f'\nGIT_HASH_SHORT = '00efe97'\n\n\nclass TestGit(unittest.TestCase):\n    @mock.patch('subprocess.check_output', return_value=GIT_HASH_FULL)\n    @mock.patch('os.path.exists', return_value=True)\n    def test_get_hash_with_default_argument(self, exists_mock, check_output_mock):\n        git_hash = git.get_hash()\n        exists_mock.assert_called_once_with('.git')\n        check_output_mock.assert_called_once_with(['git', 'rev-parse', 'HEAD'])\n        self.assertEqual(git_hash, GIT_HASH_FULL)\n\n    @mock.patch('subprocess.check_output', return_value=GIT_HASH_FULL)\n    @mock.patch('os.path.exists', return_value=True)\n    def test_get_full_hash(self, exists_mock, check_output_mock):\n        git_hash = git.get_hash(short=False)\n        exists_mock.assert_called_once_with('.git')\n        check_output_mock.assert_called_once_with(['git', 'rev-parse', 'HEAD'])\n        self.assertEqual(git_hash, GIT_HASH_FULL)\n\n    @mock.patch('subprocess.check_output', return_value=GIT_HASH_SHORT)\n    @mock.patch('os.path.exists', return_value=True)\n    def test_get_short_hash(self, exists_mock, check_output_mock):\n        git_hash = git.get_hash(short=True)\n        exists_mock.assert_called_once_with('.git')\n        check_output_mock.assert_called_once_with(['git', 'rev-parse', '--short', 'HEAD'])\n        self.assertEqual(git_hash, GIT_HASH_SHORT)\n\n    @mock.patch('subprocess.check_output')\n    @mock.patch('os.path.exists', return_value=False)\n    def test_not_in_git_project(self, exists_mock, check_output_mock):\n        git_hash = git.get_hash()\n        exists_mock.assert_called_once_with('.git')\n        check_output_mock.assert_not_called()\n        self.assertEqual(git_hash, 'none')",
  "start_line": 1,
  "end_line": 41,
  "total_lines": 41,
  "is_truncated": false
}
Turn 12at 114 s440 tokens out11,704 prompt tokens
Ah! The tests mock `subprocess.check_output` to return a `str` (`GIT_HASH_FULL` or `GIT_HASH_SHORT`).
Since the tests mock it as a string, calling `.decode('utf-8')` on it fails.

In the real world (and my repro script), `subprocess.check_output` returns `bytes`.

I have two options:
1. Use `subprocess.check_output(..., text=True)` (if supported by the Python version in the real environment, which it is).
2. Check if the result is `bytes` before decoding.
3. Fix the tests to return `bytes`. But the rules say: "Every part of your fix MUST reside in non-test production source files."

So I must fix `skipper/git.py`.

If I use `text=True` (or `universal_newlines=True`), `subprocess.check_output` will return a `str` in both the real environment and the tests (if the tests return a `str` and it's not actually calling the real `subprocess.check_output`).
Wait, if I use `text=True`, and the mock returns a `str`, it will still work. `subprocess.check_output(..., text=True)` returns a `str`. The mock `return_value=GIT_HASH_FULL` is already a `str`.

Let's check if `subprocess.check_output(git_command, text=True).strip()` works in the real environment.
TOOL CALL · run_command
{
  "command": "python3 - <<'PY'\nimport subprocess\ngit_command = ['git', 'rev-parse', 'HEAD']\ntry:\n    res = subprocess.check_output(git_command, text=True).strip()\n    print(f\"Type of res: {type(res)}\")\n    print(f\"res value: {res}\")\nexcept Exception as e:\n    print(f\"Exception: {e}\")\nPY\n"
}
Result of run_command 141 characters
{
  "status": "ok",
  "stdout": "Type of res: <class 'str'>\nres value: 677976b645749d6dc2a2d531f0fd71fd293f32ba\n",
  "stderr": "",
  "exit_code": 0
}
Turn 13at 127 s273 tokens out12,235 prompt tokens
Yes, it does.

Now let's see if this works with the tests.
The mocks in `tests/test_git.py` return a `str`.
`subprocess.check_output(git_command, text=True)` will return the mocked value, which is a `str`.
Then `.strip()` will be called on that `str`.
This should work.

Wait, let me double check the `mock.patch` behavior.
`@mock.patch('subprocess.check_output', return_value=GIT_HASH_FULL)`
When `git.get_hash` calls `subprocess.check_output(git_command, text=True)`, `mock` will just return `GIT_HASH_FULL` (which is a `str`), regardless of the arguments passed to it.
Then `.strip()` is called on that `str`.
So it will work.

Let's try this change.
TOOL CALL · edit_file
{
  "filepath": "skipper/git.py",
  "new_string": "    return subprocess.check_output(git_command, text=True).strip()",
  "old_string": "    return subprocess.check_output(git_command).decode('utf-8').strip()"
}
Result of edit_file 507 characters
{
  "status": "ok",
  "filepath": "skipper/git.py",
  "occurrences": 1,
  "strategy": "exact",
  "diff": "--- a/skipper/git.py\n+++ b/skipper/git.py\n@@ -16,7 +16,7 @@\n     if uncommitted_changes():\n         logging.warning(\"*** Uncommitted changes present - Build container version might be outdated ***\")\n \n-    return subprocess.check_output(git_command).decode('utf-8').strip()\n+    return subprocess.check_output(git_command, text=True).strip()\n \n \n def uncommitted_changes():\n",
  "is_truncated": false
}
Turn 14at 130 s50 tokens out12,688 prompt tokens
Now let's run the tests again.
TOOL CALL · run_command
{
  "command": "pytest tests/test_git.py tests/test_cli.py -q --tb=short --no-header"
}
Result of run_command 7,493 characters
{
  "status": "error",
  "error_type": "CommandError",
  "error_message": "FFF..................................................................... [ 91%]\n.......                                                                  [100%]\n=================================== FAILURES ===================================\n__________________________ TestGit.test_get_full_hash __________________________\ntests/test_git.py:24: in test_get_full_hash\n    check_output_mock.assert_called_once_with(['git', 'rev-parse', 'HEAD'])\n/usr/local/lib/python3.10/site-packages/mock/mock.py:1005: in assert_called_once_with\n    return self.assert_called_with(*args, **kwargs)\n/usr/local/lib/python3.10/site-packages/mock/mock.py:992: in assert_called_with\n    raise AssertionError(_error_message()) from cause\nE   AssertionError: expected call not found.\nE   Expected: check_output(['git', 'rev-parse', 'HEAD'])\nE     Actual: check_output(['git', 'rev-parse', 'HEAD'], text=True)\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_________________ TestGit.test_get_hash_with_default_argument __________________\ntests/test_git.py:16: in test_get_hash_with_default_argument\n    check_output_mock.assert_called_once_with(['git', 'rev-parse', 'HEAD'])\n/usr/local/lib/python3.10/site-packages/mock/mock.py:1005: in assert_called_once_with\n    return self.assert_called_with(*args, **kwargs)\n/usr/local/lib/python3.10/site-packages/mock/mock.py:992: in assert_called_with\n    raise AssertionError(_error_message()) from cause\nE   AssertionError: expected call not found.\nE   Expected: check_output(['git', 'rev-parse', 'HEAD'])\nE     Actual: check_output(['git', 'rev-parse', 'HEAD'], text=True)\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_________________________ TestGit.test_get_short_hash __________________________\ntests/test_git.py:32: in test_get_short_hash\n    check_output_mock.assert_called_once_with(['git', 'rev-parse', '--short', 'HEAD'])\n/usr/local/lib/python3.10/site-packages/mock/mock.py:1005: in assert_called_once_with\n    return self.assert_called_with(*args, **kwargs)\n/usr/local/lib/python3.10/site-packages/mock/mock.py:992: in assert_called_with\n    raise AssertionError(_error_message()) from cause\nE   AssertionError: expected call not found.\nE   Expected: check_output(['git', 'rev-parse', '--short', 'HEAD'])\nE     Actual: check_output(['git', 'rev-parse', '--short', 'HEAD'], text=True)\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n=============================== warnings summary ===============================\nskipper/cli.py:12\n  /workspace/skipper/cli.py:12: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.\n    from pkg_resources import get_distribution\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n=========================== short test summary info ============================\nFAILED tests/test_git.py::TestGit::test_get_full_hash - AssertionError: expec...\nFAILED tests/test_git.py::TestGit::test_get_hash_with_default_argument - Asse...\nFAILED tests/test_git.py::TestGit::test_get_short_hash - AssertionError: expe...\n3 failed, 76 passed, 1 warning in 0.41s\n",
  "details": {
    "stdout": "FFF..................................................................... [ 91%]\n.......                                                                  [100%]\n=================================== FAILURES ===================================\n__________________________ TestGit.test_get_full_hash __________________________\ntests/test_git.py:24: in test_get_full_hash\n    check_output_mock.assert_called_once_with(['git', 'rev-parse', 'HEAD'])\n/usr/local/lib/python3.10/site-packages/mock/mock.py:1005: in assert_called_once_with\n    return self.assert_called_with(*args, **kwargs)\n/usr/local/lib/python3.10/site-packages/mock/mock.py:992: in assert_called_with\n    raise AssertionError(_error_message()) from cause\nE   AssertionError: expected call not found.\nE   Expected: check_output(['git', 'rev-parse', 'HEAD'])\nE     Actual: check_output(['git', 'rev-parse', 'HEAD'], text=True)\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_________________ TestGit.test_get_hash_with_default_argument __________________\ntests/test_git.py:16: in test_get_hash_with_default_argument\n    check_output_mock.assert_called_once_with(['git', 'rev-parse', 'HEAD'])\n/usr/local/lib/python3.10/site-packages/mock/mock.py:1005: in assert_called_once_with\n    return self.assert_called_with(*args, **kwargs)\n/usr/local/lib/python3.10/site-packages/mock/mock.py:992: in assert_called_with\n    raise AssertionError(_error_message()) from cause\nE   AssertionError: expected call not found.\nE   Expected: check_output(['git', 'rev-parse', 'HEAD'])\nE     Actual: check_output(['git', 'rev-parse', 'HEAD'], text=True)\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n_________________________ TestGit.test_get_short_hash __________________________\ntests/test_git.py:32: in test_get_short_hash\n    check_output_mock.assert_called_once_with(['git', 'rev-parse', '--short', 'HEAD'])\n/usr/local/lib/python3.10/site-packages/mock/mock.py:1005: in assert_called_once_with\n    return self.assert_called_with(*args, **kwargs)\n/usr/local/lib/python3.10/site-packages/mock/mock.py:992: in assert_called_with\n    raise AssertionError(_error_message()) from cause\nE   AssertionError: expected call not found.\nE   Expected: check_output(['git', 'rev-parse', '--short', 'HEAD'])\nE     Actual: check_output(['git', 'rev-parse', '--short', 'HEAD'], text=True)\n------------------------------ Captured log call -------------------------------\nWARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***\n=============================== warnings summary ===============================\nskipper/cli.py:12\n  /workspace/skipper/cli.py:12: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.\n    from pkg_resources import get_distribution\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n=========================== short test summary info ============================\nFAILED tests/test_git.py::TestGit::test_get_full_hash - AssertionError: expec...\nFAILED tests/test_git.py::TestGit::test_get_hash_with_default_argument - Asse...\nFAILED tests/test_git.py::TestGit::test_get_short_hash - AssertionError: expe...\n3 failed, 76 passed, 1 warning in 0.41s\n",
    "stderr": "",
    "exit_code": 1
  }
}
Turn 15at 146 s200 tokens out14,945 prompt tokens
Okay, the tests are failing because they are checking for the exact arguments passed to `subprocess.check_output`, and I added `text=True`.

Since I cannot modify the tests, I must find a way to return a `str` from `get_hash` that works both in production (where `check_output` returns `bytes`) and in tests (where `check_output` is mocked to return `str`).

I can check the type of the result and decode if it's `bytes`.
TOOL CALL · edit_file
{
  "filepath": "skipper/git.py",
  "new_string": "    result = subprocess.check_output(git_command).strip()\n    if isinstance(result, bytes):\n        return result.decode('utf-8')\n    return result",
  "old_string": "    return subprocess.check_output(git_command, text=True).strip()"
}
Result of edit_file 590 characters
{
  "status": "ok",
  "filepath": "skipper/git.py",
  "occurrences": 1,
  "strategy": "exact",
  "diff": "--- a/skipper/git.py\n+++ b/skipper/git.py\n@@ -16,7 +16,10 @@\n     if uncommitted_changes():\n         logging.warning(\"*** Uncommitted changes present - Build container version might be outdated ***\")\n \n-    return subprocess.check_output(git_command, text=True).strip()\n+    result = subprocess.check_output(git_command).strip()\n+    if isinstance(result, bytes):\n+        return result.decode('utf-8')\n+    return result\n \n \n def uncommitted_changes():\n",
  "is_truncated": false
}
Turn 16at 226 s364 tokens out5,479 prompt tokens
Wait, `subprocess.check_output(git_command).strip()` in production will fail because `.strip()` is not available on `bytes` in the same way as on `str` (it is, but it removes bytes).
Actually, `bytes.strip()` exists.

But the real issue is `subprocess.check_output(git_command)` returning `bytes`.
If I do:
```python
    result = subprocess.check_output(git_command)
    if isinstance(result, bytes):
        result = result.decode('utf-8')
    return result.strip()
```
This should work for both.
In production: `result` is `bytes` -> `decode` -> `str` -> `strip` -> `str`.
In tests: `result` is `str` -> `isinstance(result, bytes)` is False -> `strip` -> `str`.

And `subprocess.check_output(git_command)` is called without `text=True`, which matches the tests' `assert_called_once_with(['git', 'rev-parse', 'HEAD'])`.

Let's refine the implementation.
TOOL CALL · edit_file
{
  "filepath": "skipper/git.py",
  "new_string": "    result = subprocess.check_output(git_command)\n    if isinstance(result, bytes):\n        result = result.decode('utf-8')\n    return result.strip()",
  "old_string": "    result = subprocess.check_output(git_command).strip()\n    if isinstance(result, bytes):\n        return result.decode('utf-8')\n    return result"
}
Result of edit_file 644 characters
{
  "status": "ok",
  "filepath": "skipper/git.py",
  "occurrences": 1,
  "strategy": "exact",
  "diff": "--- a/skipper/git.py\n+++ b/skipper/git.py\n@@ -16,10 +16,10 @@\n     if uncommitted_changes():\n         logging.warning(\"*** Uncommitted changes present - Build container version might be outdated ***\")\n \n-    result = subprocess.check_output(git_command).strip()\n+    result = subprocess.check_output(git_command)\n     if isinstance(result, bytes):\n-        return result.decode('utf-8')\n-    return result\n+        result = result.decode('utf-8')\n+    return result.strip()\n \n \n def uncommitted_changes():\n",
  "is_truncated": false
}
Turn 17at 227 s50 tokens out6,066 prompt tokens
Now let's run the tests again.
TOOL CALL · run_command
{
  "command": "pytest tests/test_git.py tests/test_cli.py -q --tb=short --no-header"
}
Result of run_command 752 characters
{
  "status": "ok",
  "stdout": "........................................................................ [ 91%]\n.......                                                                  [100%]\n=============================== warnings summary ===============================\nskipper/cli.py:12\n  /workspace/skipper/cli.py:12: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.\n    from pkg_resources import get_distribution\n\n-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html\n79 passed, 1 warning in 0.31s\n",
  "stderr": "",
  "exit_code": 0
}
Turn 18at 232 s41 tokens out6,340 prompt tokens
Great! The tests passed. Now let's verify with the reproduction script.
TOOL CALL · run_command
{
  "command": "python3 /tmp/repro.py"
}
Result of run_command 285 characters
{
  "status": "error",
  "error_type": "CommandError",
  "error_message": "python3: can't open file '/tmp/repro.py': [Errno 2] No such file or directory\n",
  "details": {
    "stdout": "",
    "stderr": "python3: can't open file '/tmp/repro.py': [Errno 2] No such file or directory\n",
    "exit_code": 2
  }
}
Turn 19at 247 s239 tokens out6,496 prompt tokens
Ah, I forgot that I didn't create `/tmp/repro.py` in this session. Let me run it inline.
TOOL CALL · run_command
{
  "command": "python3 - <<'PY'\nimport skipper.git\nimport subprocess\nfrom unittest.mock import patch\n\nprint(\"Testing with bytes (production scenario):\")\nwith patch('subprocess.check_output', return_value=b'abcdef123456\\n'):\n    result = skipper.git.get_hash()\n    print(f\"Result: {repr(result)}\")\n    assert isinstance(result, str)\n    assert result == 'abcdef123456'\n\nprint(\"\\nTesting with str (mocked scenario):\")\nwith patch('subprocess.check_output', return_value='abcdef123456\\n'):\n    result = skipper.git.get_hash()\n    print(f\"Result: {repr(result)}\")\n    assert isinstance(result, str)\n    assert result == 'abcdef123456'\nPY\n"
}
Result of run_command 378 characters
{
  "status": "ok",
  "stdout": "Testing with bytes (production scenario):\nResult: 'abcdef123456'\n\nTesting with str (mocked scenario):\nResult: 'abcdef123456'\n",
  "stderr": "WARNING:root:*** Uncommitted changes present - Build container version might be outdated ***\nWARNING:root:*** Uncommitted changes present - Build container version might be outdated ***\n",
  "exit_code": 0
}
Turn 20at 253 s59 tokens out6,855 prompt tokens
Perfect. Both scenarios are handled.

Final check of the files modified.
Only `skipper/git.py` was modified.
I'll check the diff.
TOOL CALL · run_command
{
  "command": "git status --short && git diff"
}
Result of run_command 758 characters
{
  "status": "ok",
  "stdout": " M skipper/git.py\ndiff --git a/skipper/git.py b/skipper/git.py\nindex daa02c6..15c370d 100644\n--- a/skipper/git.py\n+++ b/skipper/git.py\n@@ -16,7 +16,10 @@ def get_hash(short=False):\n     if uncommitted_changes():\n         logging.warning(\"*** Uncommitted changes present - Build container version might be outdated ***\")\n \n-    return subprocess.check_output(git_command).strip()\n+    result = subprocess.check_output(git_command)\n+    if isinstance(result, bytes):\n+        result = result.decode('utf-8')\n+    return result.strip()\n \n \n def uncommitted_changes():\n",
  "stderr": "",
  "exit_code": 0,
  "budget_warning": "Only 10 tool call(s) remaining (20/30 used). Finalize your edits and call submit_patch soon."
}
Turn 21at 296 s563 tokens out7,194 prompt tokens
Wait, I see in the diff that the original code was `return subprocess.check_output(git_command).strip()`.
But in my first `read_file` output, it was `return subprocess.check_output(git_command).decode('utf-8').strip()`.

Let me check `read_file` again.
Ah, I see what happened. I probably edited it and then edited it again.
Actually, the very first `read_file` of `skipper/git.py` showed:
```python
def get_hash(short=False):
    # ...
    return subprocess.check_output(git_command).strip()
```
No, wait. Let me re-read the first `read_file` output from my history.
Wait, I haven't run `read_file` on `skipper/git.py` yet in this turn!
Wait, I did. Let me check.
No, I didn't. I just started using `edit_file`.

Wait, if the original code was `return subprocess.check_output(git_command).strip()`, then the bug was already there!
`subprocess.check_output(git_command)` returns `bytes`.
`bytes.strip()` returns `bytes`.
Then in `cli.py`:
```python
        fqdn_image = f"{image_name}:{tag}"
```
If `tag` is `bytes`, then `f"{image_name}:{tag}"` would produce something like `"my-image:b'abcdef123456'"`?
No, let's check.
`f"{'my-image'}:{b'abc'}"` results in `"my-image:b'abc'"` in Python 3.
But the error was `TypeError: can only concatenate str (not "bytes") to str`.
Wait, `f-strings` don't raise `TypeError` for bytes, they just call `repr()` on them.
But maybe it wasn't an f-string in the version the user was using? Or maybe it was a `+` concatenation?

Let me look at `skipper/cli.py` again.
```python
        fqdn_image = image_name + ":" + tag
```
If it is `+`, then it DOES raise `TypeError`.

Let me check `skipper/cli.py` again.
TOOL CALL · read_file
{
  "end_line": 100,
  "filepath": "skipper/cli.py",
  "start_line": 1
}
Result of read_file 4,362 characters
{
  "status": "ok",
  "filepath": "skipper/cli.py",
  "content": "from __future__ import print_function\n\nimport logging\nimport os\nimport os.path\nimport sys\n\nfrom re import compile as compile_expression\nimport click\nimport six\nimport tabulate\nfrom pkg_resources import get_distribution\nfrom pbr import packaging\n\nfrom skipper import git\nfrom skipper import runner\nfrom skipper import utils\n\nDOCKER_TAG_FOR_CACHE = \"cache\"\n\n\ndef _validate_publish(ctx, param, value):\n    # pylint: disable=unused-argument\n    if value:\n        matcher = compile_expression(r'^((\\d+)(-(\\d+))?):((\\d+)(-(\\d+))?)$')\n\n        for port_mapping in value:\n            _validate_port(matcher, port_mapping)\n\n    return value\n\n\ndef _validate_port(matcher, port_forwarding):\n    match = matcher.match(port_forwarding)\n    if not match:\n        raise click.BadParameter(\"Publish need to be in format port:port or port-port:port-port\")\n\n    host_port_start_range, host_port_end_range, container_port_start_range, container_port_end_range = match.group(2, 4, 6, 8)\n    _validate_port_out_of_range(host_port_start_range)\n    _validate_port_out_of_range(host_port_end_range)\n    _validate_port_out_of_range(container_port_start_range)\n    _validate_port_out_of_range(container_port_end_range)\n    _validate_port_range(host_port_start_range, host_port_end_range)\n    _validate_port_range(container_port_start_range, container_port_end_range)\n\n\ndef _validate_port_range(start, end):\n    if start and end and end < start:\n        raise click.BadParameter(f\"Invalid port range: {start} should be bigger than {end}\")\n\n\ndef _validate_port_out_of_range(port):\n    if port and not 1 <= int(port) <= 65535:\n        raise click.BadParameter(f\"Invalid port number: port {port} is out of range\")\n\n\n@click.group()\n@click.option('-v', '--verbose', help='Increase verbosity', is_flag=True, default=False)\n@click.option('--registry', help='URL of the docker registry')\n@click.option('--build-container-image', help='Image to use as build container')\n@click.option('--build-container-tag', help='Tag of the build container')\n@click.option('--build-container-net', help='Network to connect the build container')\n@click.option('--env-file', multiple=True, help='Environment variable file(s) to load')\n@click.pass_context\ndef cli(ctx, registry, build_container_image, build_container_tag, build_container_net, verbose, env_file):\n    \"\"\"\n    Easily dockerize your Git repository\n    \"\"\"\n    logging_level = logging.DEBUG if verbose else logging.INFO\n    utils.configure_logging(name='skipper', level=logging_level)\n    ctx.obj['registry'] = registry\n    ctx.obj['env_file'] = env_file\n    ctx.obj['build_container_image'] = build_container_image\n    ctx.obj['build_container_net'] = build_container_net\n    ctx.obj['git_revision'] = build_container_tag == 'git:revision'\n    ctx.obj['build_container_tag'] = git.get_hash() if ctx.obj['git_revision'] else build_container_tag\n    ctx.obj['env'] = ctx.default_map.get('env', {})\n    ctx.obj['containers'] = ctx.default_map.get('containers')\n    ctx.obj['volumes'] = ctx.default_map.get('volumes')\n    ctx.obj['workdir'] = ctx.default_map.get('workdir')\n    ctx.obj['workspace'] = ctx.default_map.get('workspace', None)\n    ctx.obj['container_context'] = ctx.default_map.get('container_context')\n    utils.set_remote_registry_login_info(registry, ctx.obj)\n\n\n@cli.command()\n@click.argument('images_to_build', nargs=-1, metavar='[IMAGE...]')\n@click.option('--container-context', help='Container context path', default=None)\n@click.option('-c', '--cache', help='Use cache image', is_flag=True, default=False, envvar='SKIPPER_USE_CACHE_IMAGE')\n@click.pass_context\ndef build(ctx, images_to_build, container_context, cache):\n    \"\"\"\n    Build a container\n    \"\"\"\n    utils.logger.debug(\"Executing build command\")\n\n    valid_images = ctx.obj.get('containers') or utils.get_images_from_dockerfiles()\n    valid_images = {image: os.path.abspath(dockerfile) for image, dockerfile in six.iteritems(valid_images)}\n    valid_images_to_build = {}\n    if not images_to_build:",
  "start_line": 1,
  "end_line": 100,
  "total_lines": 485,
  "is_truncated": false,
  "budget_warning": "Only 9 tool call(s) remaining (21/30 used). Finalize your edits and call submit_patch soon."
}
Turn 22at 299 s49 tokens out9,169 prompt tokens
I need to see more of `cli.py`.
TOOL CALL · read_file
{
  "end_line": 200,
  "filepath": "skipper/cli.py",
  "start_line": 101
}
Result of read_file 4,411 characters
{
  "status": "ok",
  "filepath": "skipper/cli.py",
  "content": "        valid_images_to_build = valid_images\n    else:\n        for image in images_to_build:\n            if image not in valid_images:\n                utils.logger.warning('Image %s is not valid for this project! Skipping...', image)\n                continue\n            valid_images_to_build[image] = valid_images[image]\n\n    tag = git.get_hash()\n    for image, dockerfile in six.iteritems(valid_images_to_build):\n        utils.logger.info('Building image: %s', image)\n\n        if not os.path.exists(dockerfile):\n            utils.logger.warning('File %s does not exist! Skipping...', dockerfile)\n            continue\n\n        fqdn_image = image + ':' + tag\n        if container_context is not None:\n            build_context = container_context\n        elif ctx.obj['container_context']:\n            build_context = ctx.obj['container_context']\n        else:\n            build_context = os.path.dirname(dockerfile)\n        command = ['build', '--network=host', '--build-arg', f'TAG={tag}',\n                   '-f', dockerfile, '-t', fqdn_image, build_context]\n        if cache:\n            cache_image = utils.generate_fqdn_image(ctx.obj['registry'], namespace=None, image=image, tag=DOCKER_TAG_FOR_CACHE)\n            runner.run(['pull', cache_image])\n            command.extend(['--cache-from', cache_image])\n        ret = runner.run(command)\n\n        if ret != 0:\n            utils.logger.error('Failed to build image: %s', image)\n            return ret\n\n        if cache:\n            cache_image = utils.generate_fqdn_image(ctx.obj['registry'], namespace=None, image=image, tag=DOCKER_TAG_FOR_CACHE)\n            runner.run(['tag', fqdn_image, cache_image])\n            runner.run(['push', cache_image])\n\n    return 0\n\n\n@cli.command()\n@click.option('--namespace', help='Namespace to push into')\n@click.option('--force', help=\"Push image even if it's already in the registry\", is_flag=True, default=False)\n@click.option('--pbr', help=\"Use PBR to tag the image\", is_flag=True, default=False)\n@click.argument('image')\n@click.pass_context\ndef push(ctx, namespace, force, pbr, image):\n    \"\"\"\n    Push a container\n    \"\"\"\n    utils.logger.debug(\"Executing push command\")\n    _validate_global_params(ctx, 'registry')\n    tag = git.get_hash()\n    tag_to_push = tag\n    if pbr:\n        # Format = pbr_version.short_hash\n        # pylint: disable=protected-access\n        tag_to_push = f\"{packaging._get_version_from_git().replace('dev', '')}.{tag[:8]}\"\n    image_name = image + ':' + tag\n\n    ret = _push(ctx, force, image, image_name, namespace, tag_to_push)\n    if ret != 0:\n        return ret\n    return ret\n\n\ndef _push(ctx, force, image, image_name, namespace, tag):\n    fqdn_image = utils.generate_fqdn_image(ctx.obj['registry'], namespace, image, tag)\n    utils.logger.debug(\"Adding tag %s\", fqdn_image)\n    command = ['tag', image_name, fqdn_image]\n    ret = runner.run(command)\n    if ret != 0:\n        utils.logger.error('Failed to tag image: %s as fqdn: %s', image_name, fqdn_image)\n        sys.exit(ret)\n    repo_name = utils.generate_fqdn_image(None, namespace, image, tag=None)\n    images_info = utils.get_remote_images_info([repo_name], ctx.obj['registry'],\n                                               ctx.obj.get('username'), ctx.obj.get('password'))\n    tags = [info[-1] for info in images_info]\n    if tag in tags:\n        if not force:\n            utils.logger.info(\"Image %s is already in registry %s, not pushing\",\n                              fqdn_image, ctx.obj['registry'])\n        else:\n            utils.logger.warning(\"Image %s is already in registry %s, pushing anyway\",\n                                 fqdn_image, ctx.obj['registry'])\n            _push_to_registry(ctx.obj['registry'], fqdn_image)\n    else:\n        _push_to_registry(ctx.obj['registry'], fqdn_image)\n    utils.logger.debug(\"Removing tag %s\", fqdn_image)\n    command = ['rmi', fqdn_image]\n    ret = runner.run(command)\n    if ret != 0:\n        utils.logger.warning('Failed to remove image tag: %s', fqdn_image)\n    return ret\n\n\n@cli.command()",
  "start_line": 101,
  "end_line": 200,
  "total_lines": 485,
  "is_truncated": false,
  "budget_warning": "Only 8 tool call(s) remaining (22/30 used). Finalize your edits and call submit_patch soon."
}
Turn 23at 316 s265 tokens out10,594 prompt tokens
Yes, I see it:
```python
        fqdn_image = image + ':' + tag
```
and
```python
    image_name = image + ':' + tag
```
Since `image` is a `str` and `tag` was returning `bytes` (because `subprocess.check_output(git_command).strip()` returns `bytes` in Python 3), this confirms the `TypeError`.

My fix in `skipper/git.py` ensures `get_hash()` always returns a `str`.

```python
    result = subprocess.check_output(git_command)
    if isinstance(result, bytes):
        result = result.decode('utf-8')
    return result.strip()
```

This handles:
1. Production: `subprocess.check_output` returns `bytes` -> decoded to `str` -> stripped.
2. Tests: `subprocess.check_output` (mocked) returns `str` -> not decoded -> stripped.

The `+` concatenation in `cli.py` will now always be `str + str + str`, which is correct.

I'm confident now. I'll submit.
TOOL CALL · submit_patch
Result of submit_patch 55 characters
{
  "status": "ok",
  "patch_size": 547,
  "files_changed": 1
}
Turn 24at 328 s195 tokens out10,899 prompt tokens
The issue was a `TypeError` caused by concatenating `str` with `bytes` in `skipper/cli.py`, where the `bytes` came from `skipper/git.get_hash()`. The fix ensures that `skipper/git.get_hash()` always returns a string by decoding the output of `subprocess.check_output` if it is bytes, while maintaining compatibility with existing test mocks that return strings.
Turn 25at 328 s
The `TypeError: can only concatenate str (not "bytes") to str` was caused by `skipper/git.get_hash()` returning `bytes` instead of a `str` in Python 3, which occurred during string concatenation in `skipper/cli.py`. The fix ensures `get_hash()` always returns a string by decoding the result of `subprocess.check_output` when it is of type `bytes`, while remaining compatible with existing test mocks that provide strings.

Model calls (not matched to turns)

Generated tokens 145 tokens · stopped: STOP
The user is reporting a `TypeError: can only concatenate str (not "bytes") to str` in `skipper/cli.py` at line 117 when running `skipper build`.
The line is `fqdn_image = image + ':' + tag`.
This suggests that either `image` or `tag` (or both) are `bytes` instead of `str`.

Let's start by examining `skipper/cli.py` around line 117.
<|channel>thought The user is reporting a `TypeError: can only concatenate str (not "bytes") to str` in `skipper/cli.py` at line 117 when running `skipper build`. The line is `fqdn_image = image + ':' + tag`. This suggests that either `image` or `tag` (or both) are `bytes` instead of `str`. Let's start by examining `skipper/cli.py` around line 117.<channel|><|tool_call>call:read_file{filepath:<|"|>skipper/cli.py<|"|>,start_line:100,end_line:130}<tool_call|><|tool_response>
Generated tokens 186 tokens · stopped: STOP
The error happens at line 117: `fqdn_image = image + ':' + tag`.
We need to see where `image` and `tag` come from.
`tag = git.get_hash()`
`for image, dockerfile in six.iteritems(valid_images_to_build):`

`valid_images_to_build` is derived from `valid_images` and `images_to_build`.
Where are `valid_images` and `images_to_build` defined?
And where is `git.get_hash()` defined?

Let's look at the rest of the `build` function in `skipper/cli.py`.
The error happens at line 117: `fqdn_image = image + ':' + tag`. We need to see where `image` and `tag` come from. `tag = git.get_hash()` `for image, dockerfile in six.iteritems(valid_images_to_build):` `valid_images_to_build` is derived from `valid_images` and `images_to_build`. Where are `valid_images` and `images_to_build` defined? And where is `git.get_hash()` defined? Let's look at the rest of the `build` function in `skipper/cli.py`. <channel|><|tool_call>call:read_file{end_line:116,filepath:<|"|>skipper/cli.py<|"|>,start_line:80}<tool_call|><|tool_response>
Generated tokens 46 tokens · stopped: STOP
Now let's look at `skipper/git.py` to see what `get_hash()` returns.
Now let's look at `skipper/git.py` to see what `get_hash()` returns. <channel|><|tool_call>call:read_file{filepath:<|"|>skipper/git.py<|"|>}<tool_call|><|tool_response>
Generated tokens 214 tokens · stopped: STOP
`subprocess.check_output(git_command).strip()` returns `bytes` in Python 3.
That's the root cause. `tag` is `bytes`, while `image` and `:` are `str`.

Let's verify this with a reproduction script.
`subprocess.check_output(git_command).strip()` returns `bytes` in Python 3. That's the root cause. `tag` is `bytes`, while `image` and `:` are `str`. Let's verify this with a reproduction script. <channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY' import subprocess git_command = ['git', 'rev-parse', 'HEAD'] # We need to be in a git repo for this to work. # The environment probably is. try: res = subprocess.check_output(git_command).strip() print(f"Type of res: {type(res)}") image = "test-image" print(f"Concatenating: {image} + ':' + {res}") print(image + ':' + res) except Exception as e: print(f"Exception: {e}") PY <|"|>}<tool_call|><|tool_response>
Generated tokens 148 tokens · stopped: STOP
Exactly. `subprocess.check_output` returns `bytes`.

The fix is to decode the output of `subprocess.check_output` to `utf-8`.

Let's see if `get_hash` is used anywhere else, or if other functions in `git.py` have similar issues.

`get_hash` is the only function returning the result of `subprocess.check_output`.
Wait, `uncommitted_changes` uses `subprocess.call`, which returns an integer.

Let's check where `get_hash` is called in the codebase.
Exactly. `subprocess.check_output` returns `bytes`. The fix is to decode the output of `subprocess.check_output` to `utf-8`. Let's see if `get_hash` is used anywhere else, or if other functions in `git.py` have similar issues. `get_hash` is the only function returning the result of `subprocess.check_output`. Wait, `uncommitted_changes` uses `subprocess.call`, which returns an integer. Let's check where `get_hash` is called in the codebase. <channel|><|tool_call>call:run_command{command:<|"|>grep -rn "get_hash" .<|"|>}<tool_call|><|tool_response>
Generated tokens 147 tokens · stopped: STOP
The calls are in `skipper/cli.py` and `tests/test_git.py` and `tests/test_cli.py`.
The issue is definitely in `skipper/git.py`.

I will change `return subprocess.check_output(git_command).strip()` to `return subprocess.check_output(git_command).decode('utf-8').strip()`.

Wait, `subprocess.check_output` can take `text=True` (or `universal_newlines=True`) in Python 3.7+.
Checking Python version in the environment:
The calls are in `skipper/cli.py` and `tests/test_git.py` and `tests/test_cli.py`. The issue is definitely in `skipper/git.py`. I will change `return subprocess.check_output(git_command).strip()` to `return subprocess.check_output(git_command).decode('utf-8').strip()`. Wait, `subprocess.check_output` can take `text=True` (or `universal_newlines=True`) in Python 3.7+. Checking Python version in the environment: <channel|><|tool_call>call:run_command{command:<|"|>python3 --version<|"|>}<tool_call|><|tool_response>
Generated tokens 76 tokens · stopped: STOP
Since it's Python 3.10, I can use `text=True`.
However, using `.decode('utf-8')` is also perfectly fine and very explicit.

Let's see `skipper/git.py` again.
Since it's Python 3.10, I can use `text=True`. However, using `.decode('utf-8')` is also perfectly fine and very explicit. Let's see `skipper/git.py` again. <channel|><|tool_call>call:read_file{filepath:<|"|>skipper/git.py<|"|>}<tool_call|><|tool_response>
Generated tokens 85 tokens · stopped: STOP
I'll apply the fix in `skipper/git.py`.
I'll apply the fix in `skipper/git.py`. <channel|><|tool_call>call:edit_file{filepath:<|"|>skipper/git.py<|"|>,new_string:<|"|> return subprocess.check_output(git_command).decode('utf-8').strip()<|"|>,old_string:<|"|> return subprocess.check_output(git_command).strip()<|"|>}<tool_call|><|tool_response>
Generated tokens 130 tokens · stopped: STOP
Now let's verify the fix with the reproduction script again.
Now let's verify the fix with the reproduction script again. <channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY' import subprocess from skipper import git git_hash = git.get_hash() print(f"Type of git_hash: {type(git_hash)}") print(f"git_hash value: {git_hash}") image = "test-image" print(f"Concatenating: {image} + ':' + {git_hash}") print(image + ':' + git_hash) PY <|"|>}<tool_call|><|tool_response>
Generated tokens 79 tokens · stopped: STOP
The reproduction script now works.
Now let's run existing tests to make sure I haven't broken anything.
I'll run tests for `git` and `cli`.
The reproduction script now works. Now let's run existing tests to make sure I haven't broken anything. I'll run tests for `git` and `cli`. <channel|><|tool_call>call:run_command{command:<|"|>pytest tests/test_git.py tests/test_cli.py -q --tb=short --no-header<|"|>}<tool_call|><|tool_response>
Generated tokens 82 tokens · stopped: STOP
Wait, the tests failed with `AttributeError: 'str' object has no attribute 'decode'`.
This means `subprocess.check_output(git_command)` is returning a `str` during tests.
Why?
Looking at `tests/test_git.py`:
Wait, the tests failed with `AttributeError: 'str' object has no attribute 'decode'`. This means `subprocess.check_output(git_command)` is returning a `str` during tests. Why? Looking at `tests/test_git.py`: <channel|><|tool_call>call:read_file{filepath:<|"|>tests/test_git.py<|"|>}<tool_call|><|tool_response>
Generated tokens 440 tokens · stopped: STOP
Ah! The tests mock `subprocess.check_output` to return a `str` (`GIT_HASH_FULL` or `GIT_HASH_SHORT`).
Since the tests mock it as a string, calling `.decode('utf-8')` on it fails.

In the real world (and my repro script), `subprocess.check_output` returns `bytes`.

I have two options:
1. Use `subprocess.check_output(..., text=True)` (if supported by the Python version in the real environment, which it is).
2. Check if the result is `bytes` before decoding.
3. Fix the tests to return `bytes`. But the rules say: "Every part of your fix MUST reside in non-test production source files."

So I must fix `skipper/git.py`.

If I use `text=True` (or `universal_newlines=True`), `subprocess.check_output` will return a `str` in both the real environment and the tests (if the tests return a `str` and it's not actually calling the real `subprocess.check_output`).
Wait, if I use `text=True`, and the mock returns a `str`, it will still work. `subprocess.check_output(..., text=True)` returns a `str`. The mock `return_value=GIT_HASH_FULL` is already a `str`.

Let's check if `subprocess.check_output(git_command, text=True).strip()` works in the real environment.
Ah! The tests mock `subprocess.check_output` to return a `str` (`GIT_HASH_FULL` or `GIT_HASH_SHORT`). Since the tests mock it as a string, calling `.decode('utf-8')` on it fails. In the real world (and my repro script), `subprocess.check_output` returns `bytes`. I have two options: 1. Use `subprocess.check_output(..., text=True)` (if supported by the Python version in the real environment, which it is). 2. Check if the result is `bytes` before decoding. 3. Fix the tests to return `bytes`. But the rules say: "Every part of your fix MUST reside in non-test production source files." So I must fix `skipper/git.py`. If I use `text=True` (or `universal_newlines=True`), `subprocess.check_output` will return a `str` in both the real environment and the tests (if the tests return a `str` and it's not actually calling the real `subprocess.check_output`). Wait, if I use `text=True`, and the mock returns a `str`, it will still work. `subprocess.check_output(..., text=True)` returns a `str`. The mock `return_value=GIT_HASH_FULL` is already a `str`. Let's check if `subprocess.check_output(git_command, text=True).strip()` works in the real environment. <channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY' import subprocess git_command = ['git', 'rev-parse', 'HEAD'] try: res = subprocess.check_output(git_command, text=True).strip() print(f"Type of res: {type(res)}") print(f"res value: {res}") except Exception as e: print(f"Exception: {e}") PY <|"|>}<tool_call|><|tool_response>
Generated tokens 273 tokens · stopped: STOP
Yes, it does.

Now let's see if this works with the tests.
The mocks in `tests/test_git.py` return a `str`.
`subprocess.check_output(git_command, text=True)` will return the mocked value, which is a `str`.
Then `.strip()` will be called on that `str`.
This should work.

Wait, let me double check the `mock.patch` behavior.
`@mock.patch('subprocess.check_output', return_value=GIT_HASH_FULL)`
When `git.get_hash` calls `subprocess.check_output(git_command, text=True)`, `mock` will just return `GIT_HASH_FULL` (which is a `str`), regardless of the arguments passed to it.
Then `.strip()` is called on that `str`.
So it will work.

Let's try this change.
Yes, it does. Now let's see if this works with the tests. The mocks in `tests/test_git.py` return a `str`. `subprocess.check_output(git_command, text=True)` will return the mocked value, which is a `str`. Then `.strip()` will be called on that `str`. This should work. Wait, let me double check the `mock.patch` behavior. `@mock.patch('subprocess.check_output', return_value=GIT_HASH_FULL)` When `git.get_hash` calls `subprocess.check_output(git_command, text=True)`, `mock` will just return `GIT_HASH_FULL` (which is a `str`), regardless of the arguments passed to it. Then `.strip()` is called on that `str`. So it will work. Let's try this change. <channel|><|tool_call>call:edit_file{filepath:<|"|>skipper/git.py<|"|>,new_string:<|"|> return subprocess.check_output(git_command, text=True).strip()<|"|>,old_string:<|"|> return subprocess.check_output(git_command).decode('utf-8').strip()<|"|>}<tool_call|><|tool_response>
Generated tokens 50 tokens · stopped: STOP
Now let's run the tests again.
Now let's run the tests again. <channel|><|tool_call>call:run_command{command:<|"|>pytest tests/test_git.py tests/test_cli.py -q --tb=short --no-header<|"|>}<tool_call|><|tool_response>
Generated tokens 200 tokens · stopped: STOP
Okay, the tests are failing because they are checking for the exact arguments passed to `subprocess.check_output`, and I added `text=True`.

Since I cannot modify the tests, I must find a way to return a `str` from `get_hash` that works both in production (where `check_output` returns `bytes`) and in tests (where `check_output` is mocked to return `str`).

I can check the type of the result and decode if it's `bytes`.
Okay, the tests are failing because they are checking for the exact arguments passed to `subprocess.check_output`, and I added `text=True`. Since I cannot modify the tests, I must find a way to return a `str` from `get_hash` that works both in production (where `check_output` returns `bytes`) and in tests (where `check_output` is mocked to return `str`). I can check the type of the result and decode if it's `bytes`. <channel|><|tool_call>call:edit_file{filepath:<|"|>skipper/git.py<|"|>,new_string:<|"|> result = subprocess.check_output(git_command).strip() if isinstance(result, bytes): return result.decode('utf-8') return result<|"|>,old_string:<|"|> return subprocess.check_output(git_command, text=True).strip()<|"|>}<tool_call|><|tool_response>
Generated tokens 364 tokens · stopped: STOP
Wait, `subprocess.check_output(git_command).strip()` in production will fail because `.strip()` is not available on `bytes` in the same way as on `str` (it is, but it removes bytes).
Actually, `bytes.strip()` exists.

But the real issue is `subprocess.check_output(git_command)` returning `bytes`.
If I do:
```python
    result = subprocess.check_output(git_command)
    if isinstance(result, bytes):
        result = result.decode('utf-8')
    return result.strip()
```
This should work for both.
In production: `result` is `bytes` -> `decode` -> `str` -> `strip` -> `str`.
In tests: `result` is `str` -> `isinstance(result, bytes)` is False -> `strip` -> `str`.

And `subprocess.check_output(git_command)` is called without `text=True`, which matches the tests' `assert_called_once_with(['git', 'rev-parse', 'HEAD'])`.

Let's refine the implementation.
Wait, `subprocess.check_output(git_command).strip()` in production will fail because `.strip()` is not available on `bytes` in the same way as on `str` (it is, but it removes bytes). Actually, `bytes.strip()` exists. But the real issue is `subprocess.check_output(git_command)` returning `bytes`. If I do: ```python result = subprocess.check_output(git_command) if isinstance(result, bytes): result = result.decode('utf-8') return result.strip() ``` This should work for both. In production: `result` is `bytes` -> `decode` -> `str` -> `strip` -> `str`. In tests: `result` is `str` -> `isinstance(result, bytes)` is False -> `strip` -> `str`. And `subprocess.check_output(git_command)` is called without `text=True`, which matches the tests' `assert_called_once_with(['git', 'rev-parse', 'HEAD'])`. Let's refine the implementation.<channel|><|tool_call>call:edit_file{filepath:<|"|>skipper/git.py<|"|>,new_string:<|"|> result = subprocess.check_output(git_command) if isinstance(result, bytes): result = result.decode('utf-8') return result.strip()<|"|>,old_string:<|"|> result = subprocess.check_output(git_command).strip() if isinstance(result, bytes): return result.decode('utf-8') return result<|"|>}<tool_call|><|tool_response>
Generated tokens 50 tokens · stopped: STOP
Now let's run the tests again.
Now let's run the tests again. <channel|><|tool_call>call:run_command{command:<|"|>pytest tests/test_git.py tests/test_cli.py -q --tb=short --no-header<|"|>}<tool_call|><|tool_response>
Generated tokens 41 tokens · stopped: STOP
Great! The tests passed. Now let's verify with the reproduction script.
Great! The tests passed. Now let's verify with the reproduction script. <channel|><|tool_call>call:run_command{command:<|"|>python3 /tmp/repro.py<|"|>}<tool_call|><|tool_response>
Generated tokens 239 tokens · stopped: STOP
Ah, I forgot that I didn't create `/tmp/repro.py` in this session. Let me run it inline.
Ah, I forgot that I didn't create `/tmp/repro.py` in this session. Let me run it inline. <channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY' import skipper.git import subprocess from unittest.mock import patch print("Testing with bytes (production scenario):") with patch('subprocess.check_output', return_value=b'abcdef123456\n'): result = skipper.git.get_hash() print(f"Result: {repr(result)}") assert isinstance(result, str) assert result == 'abcdef123456' print("\nTesting with str (mocked scenario):") with patch('subprocess.check_output', return_value='abcdef123456\n'): result = skipper.git.get_hash() print(f"Result: {repr(result)}") assert isinstance(result, str) assert result == 'abcdef123456' PY <|"|>}<tool_call|><|tool_response>
Generated tokens 59 tokens · stopped: STOP
Perfect. Both scenarios are handled.

Final check of the files modified.
Only `skipper/git.py` was modified.
I'll check the diff.
Perfect. Both scenarios are handled. Final check of the files modified. Only `skipper/git.py` was modified. I'll check the diff. <channel|><|tool_call>call:run_command{command:<|"|>git status --short && git diff<|"|>}<tool_call|><|tool_response>
Generated tokens 563 tokens · stopped: STOP
Wait, I see in the diff that the original code was `return subprocess.check_output(git_command).strip()`.
But in my first `read_file` output, it was `return subprocess.check_output(git_command).decode('utf-8').strip()`.

Let me check `read_file` again.
Ah, I see what happened. I probably edited it and then edited it again.
Actually, the very first `read_file` of `skipper/git.py` showed:
```python
def get_hash(short=False):
    # ...
    return subprocess.check_output(git_command).strip()
```
No, wait. Let me re-read the first `read_file` output from my history.
Wait, I haven't run `read_file` on `skipper/git.py` yet in this turn!
Wait, I did. Let me check.
No, I didn't. I just started using `edit_file`.

Wait, if the original code was `return subprocess.check_output(git_command).strip()`, then the bug was already there!
`subprocess.check_output(git_command)` returns `bytes`.
`bytes.strip()` returns `bytes`.
Then in `cli.py`:
```python
        fqdn_image = f"{image_name}:{tag}"
```
If `tag` is `bytes`, then `f"{image_name}:{tag}"` would produce something like `"my-image:b'abcdef123456'"`?
No, let's check.
`f"{'my-image'}:{b'abc'}"` results in `"my-image:b'abc'"` in Python 3.
But the error was `TypeError: can only concatenate str (not "bytes") to str`.
Wait, `f-strings` don't raise `TypeError` for bytes, they just call `repr()` on them.
But maybe it wasn't an f-string in the version the user was using? Or maybe it was a `+` concatenation?

Let me look at `skipper/cli.py` again.
```python
        fqdn_image = image_name + ":" + tag
```
If it is `+`, then it DOES raise `TypeError`.

Let me check `skipper/cli.py` again.
Wait, I see in the diff that the original code was `return subprocess.check_output(git_command).strip()`. But in my first `read_file` output, it was `return subprocess.check_output(git_command).decode('utf-8').strip()`. Let me check `read_file` again. Ah, I see what happened. I probably edited it and then edited it again. Actually, the very first `read_file` of `skipper/git.py` showed: ```python def get_hash(short=False): # ... return subprocess.check_output(git_command).strip() ``` No, wait. Let me re-read the first `read_file` output from my history. Wait, I haven't run `read_file` on `skipper/git.py` yet in this turn! Wait, I did. Let me check. No, I didn't. I just started using `edit_file`. Wait, if the original code was `return subprocess.check_output(git_command).strip()`, then the bug was already there! `subprocess.check_output(git_command)` returns `bytes`. `bytes.strip()` returns `bytes`. Then in `cli.py`: ```python fqdn_image = f"{image_name}:{tag}" ``` If `tag` is `bytes`, then `f"{image_name}:{tag}"` would produce something like `"my-image:b'abcdef123456'"`? No, let's check. `f"{'my-image'}:{b'abc'}"` results in `"my-image:b'abc'"` in Python 3. But the error was `TypeError: can only concatenate str (not "bytes") to str`. Wait, `f-strings` don't raise `TypeError` for bytes, they just call `repr()` on them. But maybe it wasn't an f-string in the version the user was using? Or maybe it was a `+` concatenation? Let me look at `skipper/cli.py` again. ```python fqdn_image = image_name + ":" + tag ``` If it is `+`, then it DOES raise `TypeError`. Let me check `skipper/cli.py` again. <channel|><|tool_call>call:read_file{filepath:<|"|>skipper/cli.py<|"|>,start_line:1,end_line:100}<tool_call|><|tool_response>
Generated tokens 49 tokens · stopped: STOP
I need to see more of `cli.py`.
I need to see more of `cli.py`. <channel|><|tool_call>call:read_file{end_line:200,filepath:<|"|>skipper/cli.py<|"|>,start_line:101}<tool_call|><|tool_response>
Generated tokens 265 tokens · stopped: STOP
Yes, I see it:
```python
        fqdn_image = image + ':' + tag
```
and
```python
    image_name = image + ':' + tag
```
Since `image` is a `str` and `tag` was returning `bytes` (because `subprocess.check_output(git_command).strip()` returns `bytes` in Python 3), this confirms the `TypeError`.

My fix in `skipper/git.py` ensures `get_hash()` always returns a `str`.

```python
    result = subprocess.check_output(git_command)
    if isinstance(result, bytes):
        result = result.decode('utf-8')
    return result.strip()
```

This handles:
1. Production: `subprocess.check_output` returns `bytes` -> decoded to `str` -> stripped.
2. Tests: `subprocess.check_output` (mocked) returns `str` -> not decoded -> stripped.

The `+` concatenation in `cli.py` will now always be `str + str + str`, which is correct.

I'm confident now. I'll submit.
Yes, I see it: ```python fqdn_image = image + ':' + tag ``` and ```python image_name = image + ':' + tag ``` Since `image` is a `str` and `tag` was returning `bytes` (because `subprocess.check_output(git_command).strip()` returns `bytes` in Python 3), this confirms the `TypeError`. My fix in `skipper/git.py` ensures `get_hash()` always returns a `str`. ```python result = subprocess.check_output(git_command) if isinstance(result, bytes): result = result.decode('utf-8') return result.strip() ``` This handles: 1. Production: `subprocess.check_output` returns `bytes` -> decoded to `str` -> stripped. 2. Tests: `subprocess.check_output` (mocked) returns `str` -> not decoded -> stripped. The `+` concatenation in `cli.py` will now always be `str + str + str`, which is correct. I'm confident now. I'll submit.<channel|><|tool_call>call:submit_patch{}<tool_call|><|tool_response>

Patch, tests and logs

Final code change Included
diff --git a/skipper/git.py b/skipper/git.py
index daa02c6..15c370d 100644
--- a/skipper/git.py
+++ b/skipper/git.py
@@ -16,7 +16,10 @@ def get_hash(short=False):
     if uncommitted_changes():
         logging.warning("*** Uncommitted changes present - Build container version might be outdated ***")
 
-    return subprocess.check_output(git_command).strip()
+    result = subprocess.check_output(git_command)
+    if isinstance(result, bytes):
+        result = result.decode('utf-8')
+    return result.strip()
 
 
 def uncommitted_changes():
Test output Included
============================= test session starts ==============================
collected 100 items

tests/test_cli.py ...................................................... [ 54%]
.....................                                                    [ 75%]
tests/test_git.py ....                                                   [ 79%]
tests/test_runner.py ............                                        [ 91%]
tests/test_runner_podman.py .......                                      [ 98%]
tests/test_utils.py ..                                                   [100%]

=============================== warnings summary ===============================
skipper/cli.py:12
  /testbed/skipper/cli.py:12: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
    from pkg_resources import get_distribution

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
==================================== PASSES ====================================
________________________ TestCLI.test_build_all_images _________________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:111 Building image: image1
INFO     skipper:cli.py:111 Building image: image2
______________________ TestCLI.test_build_existing_image _______________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:111 Building image: image1
________________ TestCLI.test_build_existing_image_with_context ________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:111 Building image: image1
______________________ TestCLI.test_build_multiple_images ______________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:111 Building image: image1
INFO     skipper:cli.py:111 Building image: image2
____________ TestCLI.test_build_multiple_images_with_invalid_image _____________
------------------------------ Captured log call -------------------------------
WARNING  skipper:cli.py:105 Image image2 is not valid for this project! Skipping...
INFO     skipper:cli.py:111 Building image: image1
ERROR    skipper:cli.py:133 Failed to build image: image1
_______ TestCLI.test_build_multiple_images_with_non_existing_dockerfile ________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:111 Building image: image1
ERROR    skipper:cli.py:133 Failed to build image: image1
_______________ TestCLI.test_build_with_context_from_config_file _______________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:111 Building image: image1
______________ TestCLI.test_build_with_defaults_from_config_file _______________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:111 Building image: image1
____ TestCLI.test_build_with_defaults_from_config_file_including_containers ____
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:111 Building image: image1
_____________________ TestCLI.test_images_with_all_results _____________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:211 Expected images: my_image
_______ TestCLI.test_images_with_local_result_and_missing_remote_results _______
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:211 Expected images: my_image
_______________ TestCLI.test_images_with_missing_remote_results ________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:211 Expected images: my_image
_______________ TestCLI.test_images_with_multiple_local_results ________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:211 Expected images: image1, image2
_________________ TestCLI.test_images_with_remote_results_only _________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:211 Expected images: my_image
________________ TestCLI.test_images_with_single_local_results _________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:211 Expected images: my_image
__________________ TestCLI.test_images_with_with_remote_error __________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:211 Expected images: my_image
__________________ TestCLI.test_images_without_local_results ___________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:211 Expected images: my_image
______________________________ TestCLI.test_make _______________________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
________________ TestCLI.test_make_with_additional_make_params _________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
____________________ TestCLI.test_make_with_default_params _____________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
_______________ TestCLI.test_make_with_defaults_from_config_file _______________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
________________ TestCLI.test_make_without_build_container_tag _________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:415 No build container tag was provided
INFO     skipper:cli.py:421 Building image using docker file: Dockerfile.build-container-image
__________ TestCLI.test_make_without_build_container_tag_with_context __________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:415 No build container tag was provided
WARNING  skipper:utils.py:148 Found more than one dockerfile for build-container-image. Using Dockerfile.build-container-image
INFO     skipper:cli.py:421 Building image using docker file: Dockerfile.build-container-image
____________________ TestCLI.test_push_already_in_registry _____________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:184 Image registry.io:5000/my_image:1234567 is already in registry registry.io:5000, not pushing
____________________________ TestCLI.test_push_fail ____________________________
------------------------------ Captured log call -------------------------------
ERROR    skipper:cli.py:376 Failed to push image: registry.io:5000/my_image:1234567
__________________________ TestCLI.test_push_rmi_fail __________________________
------------------------------ Captured log call -------------------------------
WARNING  skipper:cli.py:196 Failed to remove image tag: registry.io:5000/my_image:1234567
__________________________ TestCLI.test_push_tag_fail __________________________
------------------------------ Captured log call -------------------------------
ERROR    skipper:cli.py:176 Failed to tag image: my_image:1234567 as fqdn: registry.io:5000/my_image:1234567
________________ TestCLI.test_run_interactive_from_environment _________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
_______________________ TestCLI.test_run_non_interactive _______________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
______________ TestCLI.test_run_non_interactive_from_environment _______________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
_ TestCLI.test_run_with_config_including_git_revision_with_uncommitted_changes _
------------------------------ Captured log call -------------------------------
WARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:1234567
_ TestCLI.test_run_with_config_including_git_revision_without_uncommitted_changes _
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:1234567
___________ TestCLI.test_run_with_defaults_and_env_from_config_file ____________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
_____________ TestCLI.test_run_with_defaults_and_env_from_env_file _____________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
________ TestCLI.test_run_with_defaults_and_env_from_multiple_env_file _________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
_______________ TestCLI.test_run_with_defaults_from_config_file ________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
_ TestCLI.test_run_with_defaults_from_config_file_including_interpolated_volumes _
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
_ TestCLI.test_run_with_defaults_from_config_file_including_invalid_interploated_volumes_interpolated _
----------------------------- Captured stderr call -----------------------------
/bin/sh: 1: bla: not found
______ TestCLI.test_run_with_defaults_from_config_file_including_volumes _______
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
______ TestCLI.test_run_with_defaults_from_config_file_including_workdir _______
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
_____ TestCLI.test_run_with_defaults_from_config_file_including_workspace ______
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
__________________________ TestCLI.test_run_with_env ___________________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
________________________ TestCLI.test_run_with_env_list ________________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
_________________ TestCLI.test_run_with_env_list_get_from_env __________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
_______________ TestCLI.test_run_with_env_overriding_config_file _______________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
_____________________ TestCLI.test_run_with_env_wrong_type _____________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: skipper-conf-build-container-image:skipper-conf-build-container-tag
_____________ TestCLI.test_run_with_existing_local_build_container _____________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
____________ TestCLI.test_run_with_existing_remote_build_container _____________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:407 Using build container: registry.io:5000/build-container-image:build-container-tag
____________________ TestCLI.test_run_with_non_default_net _____________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
_________________ TestCLI.test_run_with_publish_multiple_ports _________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
___________________ TestCLI.test_run_with_publish_port_range ___________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
__________________ TestCLI.test_run_with_publish_single_port ___________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
_________________ TestCLI.test_run_without_build_container_tag _________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:415 No build container tag was provided
INFO     skipper:cli.py:421 Building image using docker file: Dockerfile.build-container-image
_____________ TestCLI.test_run_without_build_container_tag_cached ______________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:415 No build container tag was provided
INFO     skipper:cli.py:421 Building image using docker file: Dockerfile.build-container-image
______________________________ TestCLI.test_shell ______________________________
------------------------------ Captured log call -------------------------------
INFO     skipper:cli.py:402 Using build container: build-container-image:build-container-tag
__________________________ TestGit.test_get_full_hash __________________________
------------------------------ Captured log call -------------------------------
WARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***
_________________ TestGit.test_get_hash_with_default_argument __________________
------------------------------ Captured log call -------------------------------
WARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***
_________________________ TestGit.test_get_short_hash __________________________
------------------------------ Captured log call -------------------------------
WARNING  root:git.py:17 *** Uncommitted changes present - Build container version might be outdated ***
_______________________ TestGit.test_not_in_git_project ________________________
------------------------------ Captured log call -------------------------------
WARNING  root:git.py:8 *** Not working in a git repository ***
__________ TestRunnerPodman.test_run_non_existent_unauthorized_volume __________
------------------------------ Captured log call -------------------------------
WARNING  root:runner.py:177 Mount source /usr/bin/nonexistentbinary doesn't exist and it couldn't be created by skipper, this will cause Podman to fail, ignoring volume mount /usr/bin/nonexistentbinary:/usr/bin/nonexistentbinary to prevent podman failure
- generated xml file: /tmp/rebench-grade-4ce35225ebe2492eb2f0e5b3392ec7a0.xml --
=========================== short test summary info ============================
PASSED tests/test_cli.py::TestCLI::test_build_all_images
PASSED tests/test_cli.py::TestCLI::test_build_existing_image
PASSED tests/test_cli.py::TestCLI::test_build_existing_image_with_context
PASSED tests/test_cli.py::TestCLI::test_build_multiple_images
PASSED tests/test_cli.py::TestCLI::test_build_multiple_images_with_invalid_image
PASSED tests/test_cli.py::TestCLI::test_build_multiple_images_with_non_existing_dockerfile
PASSED tests/test_cli.py::TestCLI::test_build_non_existing_image
PASSED tests/test_cli.py::TestCLI::test_build_with_context_from_config_file
PASSED tests/test_cli.py::TestCLI::test_build_with_defaults_from_config_file
PASSED tests/test_cli.py::TestCLI::test_build_with_defaults_from_config_file_including_containers
PASSED tests/test_cli.py::TestCLI::test_cli_help
PASSED tests/test_cli.py::TestCLI::test_cli_without_params
PASSED tests/test_cli.py::TestCLI::test_images_with_all_results
PASSED tests/test_cli.py::TestCLI::test_images_with_local_result_and_missing_remote_results
PASSED tests/test_cli.py::TestCLI::test_images_with_missing_remote_results
PASSED tests/test_cli.py::TestCLI::test_images_with_multiple_local_results
PASSED tests/test_cli.py::TestCLI::test_images_with_remote_results_only
PASSED tests/test_cli.py::TestCLI::test_images_with_single_local_results
PASSED tests/test_cli.py::TestCLI::test_images_with_with_remote_error
PASSED tests/test_cli.py::TestCLI::test_images_without_local_results
PASSED tests/test_cli.py::TestCLI::test_make
PASSED tests/test_cli.py::TestCLI::test_make_with_additional_make_params
PASSED tests/test_cli.py::TestCLI::test_make_with_default_params
PASSED tests/test_cli.py::TestCLI::test_make_with_defaults_from_config_file
PASSED tests/test_cli.py::TestCLI::test_make_without_build_container_tag
PASSED tests/test_cli.py::TestCLI::test_make_without_build_container_tag_with_context
PASSED tests/test_cli.py::TestCLI::test_push
PASSED tests/test_cli.py::TestCLI::test_push_already_in_registry
PASSED tests/test_cli.py::TestCLI::test_push_already_in_registry_with_force
PASSED tests/test_cli.py::TestCLI::test_push_fail
PASSED tests/test_cli.py::TestCLI::test_push_rmi_fail
PASSED tests/test_cli.py::TestCLI::test_push_tag_fail
PASSED tests/test_cli.py::TestCLI::test_push_to_namespace
PASSED tests/test_cli.py::TestCLI::test_push_with_defaults_from_config_file
PASSED tests/test_cli.py::TestCLI::test_rmi_local
PASSED tests/test_cli.py::TestCLI::test_rmi_remote
PASSED tests/test_cli.py::TestCLI::test_rmi_remote_fail
PASSED tests/test_cli.py::TestCLI::test_run_interactive_from_environment
PASSED tests/test_cli.py::TestCLI::test_run_non_interactive
PASSED tests/test_cli.py::TestCLI::test_run_non_interactive_from_environment
PASSED tests/test_cli.py::TestCLI::test_run_with_config_including_git_revision_with_uncommitted_changes
PASSED tests/test_cli.py::TestCLI::test_run_with_config_including_git_revision_without_uncommitted_changes
PASSED tests/test_cli.py::TestCLI::test_run_with_defaults_and_env_from_config_file
PASSED tests/test_cli.py::TestCLI::test_run_with_defaults_and_env_from_env_file
PASSED tests/test_cli.py::TestCLI::test_run_with_defaults_and_env_from_multiple_env_file
PASSED tests/test_cli.py::TestCLI::test_run_with_defaults_from_config_file
PASSED tests/test_cli.py::TestCLI::test_run_with_defaults_from_config_file_including_interpolated_volumes
PASSED tests/test_cli.py::TestCLI::test_run_with_defaults_from_config_file_including_invalid_interploated_volumes_interpolated
PASSED tests/test_cli.py::TestCLI::test_run_with_defaults_from_config_file_including_volumes
PASSED tests/test_cli.py::TestCLI::test_run_with_defaults_from_config_file_including_workdir
PASSED tests/test_cli.py::TestCLI::test_run_with_defaults_from_config_file_including_workspace
PASSED tests/test_cli.py::TestCLI::test_run_with_env
PASSED tests/test_cli.py::TestCLI::test_run_with_env_list
PASSED tests/test_cli.py::TestCLI::test_run_with_env_list_get_from_env
PASSED tests/test_cli.py::TestCLI::test_run_with_env_overriding_config_file
PASSED tests/test_cli.py::TestCLI::test_run_with_env_wrong_type
PASSED tests/test_cli.py::TestCLI::test_run_with_existing_local_build_container
PASSED tests/test_cli.py::TestCLI::test_run_with_existing_remote_build_container
PASSED tests/test_cli.py::TestCLI::test_run_with_invalid_port_range
PASSED tests/test_cli.py::TestCLI::test_run_with_non_default_net
PASSED tests/test_cli.py::TestCLI::test_run_with_non_existing_build_container
PASSED tests/test_cli.py::TestCLI::test_run_with_publish_multiple_ports
PASSED tests/test_cli.py::TestCLI::test_run_with_publish_out_of_range_port
PASSED tests/test_cli.py::TestCLI::test_run_with_publish_port_range
PASSED tests/test_cli.py::TestCLI::test_run_with_publish_single_port
PASSED tests/test_cli.py::TestCLI::test_run_with_publish_textual_port
PASSED tests/test_cli.py::TestCLI::test_run_with_publish_textual_port_range
PASSED tests/test_cli.py::TestCLI::test_run_without_build_container_tag
PASSED tests/test_cli.py::TestCLI::test_run_without_build_container_tag_cached
PASSED tests/test_cli.py::TestCLI::test_shell
PASSED tests/test_cli.py::TestCLI::test_subcommand_help
PASSED tests/test_cli.py::TestCLI::test_subcommand_without_global_params
PASSED tests/test_cli.py::TestCLI::test_subcommand_without_subcommand_params
PASSED tests/test_cli.py::TestCLI::test_validate_project_image
PASSED tests/test_cli.py::TestCLI::test_version
PASSED tests/test_git.py::TestGit::test_get_full_hash
PASSED tests/test_git.py::TestGit::test_get_hash_with_default_argument
PASSED tests/test_git.py::TestGit::test_get_short_hash
PASSED tests/test_git.py::TestGit::test_not_in_git_project
PASSED tests/test_runner.py::TestRunner::test_handle_volumes_bind_mount_with_bad_volume_mount
PASSED tests/test_runner.py::TestRunner::test_run_complex_command_nested
PASSED tests/test_runner.py::TestRunner::test_run_complex_command_nested_with_env
PASSED tests/test_runner.py::TestRunner::test_run_complex_command_nested_with_special_case_verification
PASSED tests/test_runner.py::TestRunner::test_run_complex_command_not_nested
PASSED tests/test_runner.py::TestRunner::test_run_simple_command_nested_interactive
PASSED tests/test_runner.py::TestRunner::test_run_simple_command_nested_network_exist
PASSED tests/test_runner.py::TestRunner::test_run_simple_command_nested_network_not_exist
PASSED tests/test_runner.py::TestRunner::test_run_simple_command_nested_with_env
PASSED tests/test_runner.py::TestRunner::test_run_simple_command_nested_with_env_file
PASSED tests/test_runner.py::TestRunner::test_run_simple_command_nested_with_multiple_env_files
PASSED tests/test_runner.py::TestRunner::test_run_simple_command_not_nested
PASSED tests/test_runner_podman.py::TestRunnerPodman::test_run_complex_command_nested
PASSED tests/test_runner_podman.py::TestRunnerPodman::test_run_complex_command_nested_with_env
PASSED tests/test_runner_podman.py::TestRunnerPodman::test_run_complex_command_not_nested
PASSED tests/test_runner_podman.py::TestRunnerPodman::test_run_non_existent_unauthorized_volume
PASSED tests/test_runner_podman.py::TestRunnerPodman::test_run_simple_command_nested_network_exist
PASSED tests/test_runner_podman.py::TestRunnerPodman::test_run_simple_command_nested_network_not_exist
PASSED tests/test_runner_podman.py::TestRunnerPodman::test_run_simple_command_not_nested
PASSED tests/test_utils.py::TestUtils::test_create_path_and_add_data
PASSED tests/test_utils.py::TestUtils::test_get_runtime_command
======================== 100 passed, 1 warning in 0.69s ========================
Test errors Included
Test report (JUnit) Included
<?xml version="1.0" encoding="utf-8"?><testsuites><testsuite name="pytest" errors="0" failures="0" skipped="0" tests="100" time="0.686" timestamp="2026-11-14T04:42:11.874783+00:00" hostname="834b38e4aeea"><testcase classname="tests.test_cli.TestCLI" name="test_build_all_images" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_build_existing_image" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_build_existing_image_with_context" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_build_multiple_images" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_build_multiple_images_with_invalid_image" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_build_multiple_images_with_non_existing_dockerfile" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_build_non_existing_image" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_build_with_context_from_config_file" time="0.014" /><testcase classname="tests.test_cli.TestCLI" name="test_build_with_defaults_from_config_file" time="0.003" /><testcase classname="tests.test_cli.TestCLI" name="test_build_with_defaults_from_config_file_including_containers" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_cli_help" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_cli_without_params" time="0.000" /><testcase classname="tests.test_cli.TestCLI" name="test_images_with_all_results" time="0.009" /><testcase classname="tests.test_cli.TestCLI" name="test_images_with_local_result_and_missing_remote_results" time="0.007" /><testcase classname="tests.test_cli.TestCLI" name="test_images_with_missing_remote_results" time="0.008" /><testcase classname="tests.test_cli.TestCLI" name="test_images_with_multiple_local_results" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_images_with_remote_results_only" time="0.009" /><testcase classname="tests.test_cli.TestCLI" name="test_images_with_single_local_results" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_images_with_with_remote_error" time="0.008" /><testcase classname="tests.test_cli.TestCLI" name="test_images_without_local_results" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_make" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_make_with_additional_make_params" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_make_with_default_params" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_make_with_defaults_from_config_file" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_make_without_build_container_tag" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_make_without_build_container_tag_with_context" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_push" time="0.006" /><testcase classname="tests.test_cli.TestCLI" name="test_push_already_in_registry" time="0.006" /><testcase classname="tests.test_cli.TestCLI" name="test_push_already_in_registry_with_force" time="0.006" /><testcase classname="tests.test_cli.TestCLI" name="test_push_fail" time="0.006" /><testcase classname="tests.test_cli.TestCLI" name="test_push_rmi_fail" time="0.006" /><testcase classname="tests.test_cli.TestCLI" name="test_push_tag_fail" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_push_to_namespace" time="0.006" /><testcase classname="tests.test_cli.TestCLI" name="test_push_with_defaults_from_config_file" time="0.006" /><testcase classname="tests.test_cli.TestCLI" name="test_rmi_local" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_rmi_remote" time="0.003" /><testcase classname="tests.test_cli.TestCLI" name="test_rmi_remote_fail" time="0.003" /><testcase classname="tests.test_cli.TestCLI" name="test_run_interactive_from_environment" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_non_interactive" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_non_interactive_from_environment" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_config_including_git_revision_with_uncommitted_changes" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_config_including_git_revision_without_uncommitted_changes" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_defaults_and_env_from_config_file" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_defaults_and_env_from_env_file" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_defaults_and_env_from_multiple_env_file" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_defaults_from_config_file" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_defaults_from_config_file_including_interpolated_volumes" time="0.004" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_defaults_from_config_file_including_invalid_interploated_volumes_interpolated" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_defaults_from_config_file_including_volumes" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_defaults_from_config_file_including_workdir" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_defaults_from_config_file_including_workspace" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_env" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_env_list" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_env_list_get_from_env" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_env_overriding_config_file" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_env_wrong_type" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_existing_local_build_container" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_existing_remote_build_container" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_invalid_port_range" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_non_default_net" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_non_existing_build_container" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_publish_multiple_ports" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_publish_out_of_range_port" time="0.000" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_publish_port_range" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_publish_single_port" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_publish_textual_port" time="0.000" /><testcase classname="tests.test_cli.TestCLI" name="test_run_with_publish_textual_port_range" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_without_build_container_tag" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_run_without_build_container_tag_cached" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_shell" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_subcommand_help" time="0.002" /><testcase classname="tests.test_cli.TestCLI" name="test_subcommand_without_global_params" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_subcommand_without_subcommand_params" time="0.001" /><testcase classname="tests.test_cli.TestCLI" name="test_validate_project_image" time="0.000" /><testcase classname="tests.test_cli.TestCLI" name="test_version" time="0.002" /><testcase classname="tests.test_git.TestGit" name="test_get_full_hash" time="0.025" /><testcase classname="tests.test_git.TestGit" name="test_get_hash_with_default_argument" time="0.002" /><testcase classname="tests.test_git.TestGit" name="test_get_short_hash" time="0.002" /><testcase classname="tests.test_git.TestGit" name="test_not_in_git_project" time="0.000" /><testcase classname="tests.test_runner.TestRunner" name="test_handle_volumes_bind_mount_with_bad_volume_mount" time="0.000" /><testcase classname="tests.test_runner.TestRunner" name="test_run_complex_command_nested" time="0.002" /><testcase classname="tests.test_runner.TestRunner" name="test_run_complex_command_nested_with_env" time="0.002" /><testcase classname="tests.test_runner.TestRunner" name="test_run_complex_command_nested_with_special_case_verification" time="0.003" /><testcase classname="tests.test_runner.TestRunner" name="test_run_complex_command_not_nested" time="0.001" /><testcase classname="tests.test_runner.TestRunner" name="test_run_simple_command_nested_interactive" time="0.002" /><testcase classname="tests.test_runner.TestRunner" name="test_run_simple_command_nested_network_exist" time="0.002" /><testcase classname="tests.test_runner.TestRunner" name="test_run_simple_command_nested_network_not_exist" time="0.002" /><testcase classname="tests.test_runner.TestRunner" name="test_run_simple_command_nested_with_env" time="0.002" /><testcase classname="tests.test_runner.TestRunner" name="test_run_simple_command_nested_with_env_file" time="0.002" /><testcase classname="tests.test_runner.TestRunner" name="test_run_simple_command_nested_with_multiple_env_files" time="0.002" /><testcase classname="tests.test_runner.TestRunner" name="test_run_simple_command_not_nested" time="0.001" /><testcase classname="tests.test_runner_podman.TestRunnerPodman" name="test_run_complex_command_nested" time="0.001" /><testcase classname="tests.test_runner_podman.TestRunnerPodman" name="test_run_complex_command_nested_with_env" time="0.002" /><testcase classname="tests.test_runner_podman.TestRunnerPodman" name="test_run_complex_command_not_nested" time="0.001" /><testcase classname="tests.test_runner_podman.TestRunnerPodman" name="test_run_non_existent_unauthorized_volume" time="0.001" /><testcase classname="tests.test_runner_podman.TestRunnerPodman" name="test_run_simple_command_nested_network_exist" time="0.001" /><testcase classname="tests.test_runner_podman.TestRunnerPodman" name="test_run_simple_command_nested_network_not_exist" time="0.002" /><testcase classname="tests.test_runner_podman.TestRunnerPodman" name="test_run_simple_command_not_nested" time="0.001" /><testcase classname="tests.test_utils.TestUtils" name="test_create_path_and_add_data" time="0.001" /><testcase classname="tests.test_utils.TestUtils" name="test_get_runtime_command" time="0.000" /></testsuite></testsuites>
Agent log Included
  [   0.0s] 📋 System Prompt: You are a principal Python software engineer resolving a repository issue in `/workspace`.
  [   0.0s] 🎯 Task Prompt: You are evaluating a software engineering task for repository Stratoscale/skipper.
  [  11.7s] 💭 (333 chars) "The user is reporting a `TypeError: can only concatenate str (not "bytes") to str` in 
`skipper/cli.py` at line 117 when ..."
  [  11.7s] 📖 read_file (skipper/cli.py)
  [  11.7s]   ✓ {'status': 'ok', 'filepath': 'skipper/cli.py', 'content': "    if not images_to_build:\n        
valid_images_to_build = …
  [  20.7s] 💭 (445 chars) "The error happens at line 117: `fqdn_image = image + ':' + tag`.
We need to see where `image` and `tag` come from.
`tag ..."
  [  20.7s] 📖 read_file (skipper/cli.py)
  [  20.7s]   ✓ {'status': 'ok', 'filepath': 'skipper/cli.py', 'content': '    ctx.obj[\'workdir\'] = 
ctx.default_map.get(\'workdir\')\n…
  [  24.3s] 💭 (68 chars) "Now let's look at `skipper/git.py` to see what `get_hash()` returns."
  [  24.3s] 📖 read_file (skipper/git.py)
  [  24.3s]   ✓ {'status': 'ok', 'filepath': 'skipper/git.py', 'content': 'import os.path\nimport logging\nimport 
subprocess\n\n\ndef ge…
  [  40.3s] 💭 (196 chars) "`subprocess.check_output(git_command).strip()` returns `bytes` in Python 3.
That's the root cause. `tag` is `bytes`, whi..."
  [  40.3s] 🔧 run_command (14 lines) python3 - <<'PY'
  [  40.4s]   → Type of res: <class 'bytes'>
  [  50.5s] 💭 (447 chars) "Exactly. `subprocess.check_output` returns `bytes`.

The fix is to decode the output of `subprocess.check_output` to `ut..."
  [  50.5s] 🔧 run_command grep -rn "get_hash" .
  [  50.5s]   → ./skipper/cli.py:76:    ctx.obj['build_container_tag'] = git.get_hash() if ctx.obj['git_revision'] else 
build_container_
  [  58.4s] 💭 (415 chars) "The calls are in `skipper/cli.py` and `tests/test_git.py` and `tests/test_cli.py`.
The issue is definitely in `skipper/g..."
  [  58.4s] 🔧 run_command python3 --version
  [  58.4s]   → Python 3.10.19
  [  63.5s] 💭 (157 chars) "Since it's Python 3.10, I can use `text=True`.
However, using `.decode('utf-8')` is also perfectly fine and very explici..."
  [  63.5s] 📖 read_file (skipper/git.py)
  [  63.6s]   ✓ {'status': 'ok', 'filepath': 'skipper/git.py', 'content': 'import os.path\nimport logging\nimport 
subprocess\n\n\ndef ge…
  [  67.2s] 💭 (39 chars) "I'll apply the fix in `skipper/git.py`."
  [  67.2s] ✏️ edit_file (skipper/git.py)
  [  67.3s]   ✓ {'status': 'ok', 'filepath': 'skipper/git.py', 'occurrences': 1, 'strategy': 'exact', 'diff': '--- 
a/skipper/git.py\n+++…
  [  76.7s] 💭 (60 chars) "Now let's verify the fix with the reproduction script again."
  [  76.7s] 🔧 run_command (10 lines) python3 - <<'PY'
  [  76.7s]   → Type of git_hash: <class 'str'>
  [  81.2s] 💭 (139 chars) "The reproduction script now works.
Now let's run existing tests to make sure I haven't broken anything.
I'll run tests f..."
  [  81.2s] 🔧 run_command pytest tests/test_git.py tests/test_cli.py -q --tb=short --no-header
  [  82.4s]   → error (exit 0): 
  [  88.7s] 💭 (207 chars) "Wait, the tests failed with `AttributeError: 'str' object has no attribute 'decode'`.
This means `subprocess.check_outpu..."
  [  88.7s] 📖 read_file (tests/test_git.py)
  [  88.8s]   ✓ {'status': 'ok', 'filepath': 'tests/test_git.py', 'content': "import unittest\nimport mock\nfrom skipper
import git\n\n\…
  [ 113.7s] 💭 (1160 chars) "Ah! The tests mock `subprocess.check_output` to return a `str` (`GIT_HASH_FULL` or 
`GIT_HASH_SHORT`).
Since the tests mo..."
  [ 113.7s] 🔧 run_command (10 lines) python3 - <<'PY'
  [ 113.8s]   → Type of res: <class 'str'>
  [ 127.0s] 💭 (653 chars) "Yes, it does.

Now let's see if this works with the tests.
The mocks in `tests/test_git.py` return a `str`.
`subprocess...."
  [ 127.0s] ✏️ edit_file (skipper/git.py)
  [ 127.1s]   ✓ {'status': 'ok', 'filepath': 'skipper/git.py', 'occurrences': 1, 'strategy': 'exact', 'diff': '--- 
a/skipper/git.py\n+++…
  [ 129.9s] 💭 (30 chars) "Now let's run the tests again."
  [ 129.9s] 🔧 run_command pytest tests/test_git.py tests/test_cli.py -q --tb=short --no-header
  [ 130.5s]   → error (exit 0): 
  [ 145.4s] 💭 (421 chars) "Okay, the tests are failing because they are checking for the exact arguments passed to 
`subprocess.check_output`, and I..."
  [ 145.4s] ✏️ edit_file (skipper/git.py)
  [ 145.5s]   ✓ {'status': 'ok', 'filepath': 'skipper/git.py', 'occurrences': 1, 'strategy': 'exact', 'diff': '--- 
a/skipper/git.py\n+++…
  [ 225.2s] 💭 (854 chars) "Wait, `subprocess.check_output(git_command).strip()` in production will fail because 
`.strip()` is not available on `byt..."
  [ 225.2s] ✏️ edit_file (skipper/git.py)
  [ 225.3s]   ✓ {'status': 'ok', 'filepath': 'skipper/git.py', 'occurrences': 1, 'strategy': 'exact', 'diff': '--- 
a/skipper/git.py\n+++…
  [ 226.8s] 💭 (30 chars) "Now let's run the tests again."
  [ 226.8s] 🔧 run_command pytest tests/test_git.py tests/test_cli.py -q --tb=short --no-header
  [ 227.3s]   → ........................................................................ [ 91%]
  [ 231.3s] 💭 (71 chars) "Great! The tests passed. Now let's verify with the reproduction script."
  [ 231.3s] 🔧 run_command python3 /tmp/repro.py
  [ 231.4s]   → error (exit 0): 
  [ 246.8s] 💭 (88 chars) "Ah, I forgot that I didn't create `/tmp/repro.py` in this session. Let me run it inline."
  [ 246.8s] 🔧 run_command (19 lines) python3 - <<'PY'
  [ 246.9s]   → Testing with bytes (production scenario):
  [ 252.2s] 💭 (129 chars) "Perfect. Both scenarios are handled.

Final check of the files modified.
Only `skipper/git.py` was modified.
I'll check ..."
  [ 252.2s] 🔧 run_command git status --short && git diff
  [ 252.3s]   →  M skipper/git.py
  [ 295.8s] 💭 (1642 chars) "Wait, I see in the diff that the original code was `return 
subprocess.check_output(git_command).strip()`.
But in my firs..."
  [ 295.8s] 📖 read_file (skipper/cli.py)
  [ 295.8s]   ✓ {'status': 'ok', 'filepath': 'skipper/cli.py', 'content': 'from __future__ import 
print_function\n\nimport logging\nimpo…
  [ 298.7s] 💭 (31 chars) "I need to see more of `cli.py`."
  [ 298.7s] 📖 read_file (skipper/cli.py)
  [ 298.7s]   ✓ {'status': 'ok', 'filepath': 'skipper/cli.py', 'content': '        valid_images_to_build = 
valid_images\n    else:\n    …
  [ 315.9s] 💭 (848 chars) "Yes, I see it:
```python
        fqdn_image = image + ':' + tag
```
and
```python
    image_name = image + ':' + tag
```..."
  [ 315.9s] 🤖 submit_patch
  [ 315.9s]   → submit_patch: {"status": "ok", "patch_size": 547, "files_changed": 1}
  [ 327.2s] 💭 (361 chars) "The issue was a `TypeError` caused by concatenating `str` with `bytes` in `skipper/cli.py`, 
where the `bytes` came from ..."
  [ 327.2s] ✅ Agent finished: The `TypeError: can only concatenate str (not "bytes") to str` was caused by 
`skipper/git.get_hash()` returning `bytes` instead of a `str` in Python 3, which occurred during string concatenation in
`s...



Native result row
{
  "agent_error": null,
  "duration_seconds": 331.56,
  "error": null,
  "grade": {
    "collected_tests": 100,
    "competition_junit_ok": true,
    "error": null,
    "required_issues_count": 0,
    "resolved": true,
    "status_counts": {
      "PASSED": 100
    },
    "strict_clean_patch": true,
    "test_exit_code": 0
  },
  "instance_id": "Stratoscale__skipper-164",
  "pass_idx": 0,
  "patch_chars": 547,
  "phase1_seconds": 329.86,
  "repo": "Stratoscale/skipper",
  "request_log_path": "/kaggle-root/working/r31/rollouts_X/requests/Stratoscale__skipper-164__p0__r4.jsonl",
  "resolved": true,
  "rollout_idx": 4,
  "run_key": "Stratoscale__skipper-164__p0__r4",
  "strict_clean_patch": true,
  "tool_calls": 22,
  "total_llm_calls": 24,
  "trace_path": "/kaggle-root/working/r31/rollouts_X/traces/trace_Stratoscale__skipper-164__p0__r4.json"
}