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ROLLOUT 5 · facebookresearch/hydra

facebookresearch__hydra-273

Not solved
482 stotal time
16tool calls
17model calls
6,799tokens generated
143,120prompt tokens read

Test failures/errors recorded in JUnit XML (failures=2, errors=0)

⚠ The request log has 17 model calls but the trace has 18 agent calls, so tokens are listed separately instead of beside each turn.

Turn by turn

Token shading: p ≥ 0.9 0.5 – 0.9 0.2 – 0.5 below 0.2. Hover a token for its id and probability.

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 6,076 characters
You are evaluating a software engineering task for repository facebookresearch/hydra.

Problem Statement:
[Bug] handle yaml file with dot in the name
# 🐛 Bug

<!-- A clear and concise description of what the bug is. -->
When creating yaml file that has dot in the base name, `config_loader.py` erroneously misses the `.yaml` extension which results in a `hydra.errors.MissingConfigException`.

## To reproduce
configuration groups:
```
├── conf
│   └── lr
│       ├── 0.1.yaml
│       └── 0.01.yaml
└── my_app.py
```
with minimum `my_app.py` setup same as in the tutorial
```
python my_app.py lr=0.1
```
Traceback:
```
Traceback (most recent call last):
  File "app.py", line 9, in <module>
    app()
  File "/home/yjxiao/miniconda3/lib/python3.7/site-packages/hydra/main.py", line 24, in decorated_main
    strict=strict,
  File "/home/yjxiao/miniconda3/lib/python3.7/site-packages/hydra/_internal/utils.py", line 56, in run_hydra
    hydra.run(overrides=args.overrides)
  File "/home/yjxiao/miniconda3/lib/python3.7/site-packages/hydra/_internal/hydra.py", line 103, in run
    cfg = self._load_config(overrides)
  File "/home/yjxiao/miniconda3/lib/python3.7/site-packages/hydra/_internal/hydra.py", line 345, in _load_config
    cfg = self.config_loader.load_configuration(overrides)
  File "/home/yjxiao/miniconda3/lib/python3.7/site-packages/hydra/_internal/config_loader.py", line 56, in load_configuration
    cfg = self._merge_defaults(hydra_cfg, defaults, split_at)
  File "/home/yjxiao/miniconda3/lib/python3.7/site-packages/hydra/_internal/config_loader.py", line 395, in _merge_defaults
    cfg = merge_defaults(cfg, user_list)
  File "/home/yjxiao/miniconda3/lib/python3.7/site-packages/hydra/_internal/config_loader.py", line 374, in merge_defaults
    required=not is_optional,
  File "/home/yjxiao/miniconda3/lib/python3.7/site-packages/hydra/_internal/config_loader.py", line 301, in _merge_config
    raise MissingConfigException(msg, new_cfg, options)
hydra.errors.MissingConfigException: Could not load lr/0.1, available options:
lr:
	0.01
	0.1
```
## Questions
- Currently, I have to edit `config_loader.py` file to add the `.yaml` extension whenever it is missing. Would this cause any unwanted behavior with other features? 
- Is it generally not advisable to name config files with, say, float values? Are there better ways to incorporate float values in the config?

## 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):
```
./ATTRIBUTION
./ATTRIBUTION/LICENSE-sample-namespace-packages
./ATTRIBUTION/README.md
./CHANGELOG.md
./CODE_OF_CONDUCT.md
./CONTRIBUTING.md
./LICENSE
./MANIFEST.in
./NEWS.rst
./README.md
./examples
./hydra
./hydra/__init__.py
./hydra/_internal
./hydra/_internal/__init__.py
./hydra/_internal/config_loader.py
./hydra/_internal/config_search_path.py
./hydra/_internal/core_plugins
./hydra/_internal/hydra.py
./hydra/_internal/pathlib.py
./hydra/_internal/plugins.py
./hydra/_internal/utils.py
./hydra/conf
./hydra/conf/__init__.py
./hydra/conf/hydra
./hydra/conf/hydra.yaml
./hydra/errors.py
./hydra/main.py
./hydra/plugins
./hydra/plugins/__init__.py
./hydra/plugins/common
./hydra/plugins/completion_plugin.py
./hydra/plugins/launcher.py
./hydra/plugins/plugin.py
./hydra/plugins/search_path_plugin.py
./hydra/plugins/step_sweeper.py
./hydra/plugins/sweeper.py
./hydra/test_utils
./hydra/test_utils/__init__.py
./hydra/test_utils/a_module.py
./hydra/test_utils/completion.py
./hydra/test_utils/configs
./hydra/test_utils/launcher_common_tests.py
./hydra/test_utils/test_utils.py
./hydra/utils.py
./news
./news/251.docs
./news/251.feature
./news/254.feature
./news/261.bugfix
./news/266.bugfix
./news/53.plugin
./news/_template.rst
./noxfile.py
./plugins
./plugins/examples
./plugins/examples/example_launcher
./plugins/examples/example_plugin
./plugins/hydra_colorlog
./plugins/hydra_colorlog/MANIFEST.in
./plugins/hydra_colorlog/README.md
./plugins/hydra_colorlog/example
./plugins/hydra_colorlog/hydra_plugins
./plugins/hydra_colorlog/setup.py
./plugins/hydra_colorlog/tests
./pyproject.toml
./pytest.ini
./setup.py
./tests
./website
./website/README.md
./website/docs
./website/docs/advanced
./website/docs/configure_hydra
./website/docs/development
./website/docs/getting_started.md
./website/docs/index.html
./website/docs/intro.md
./website/docs/patterns
./website/docs/plugins
./website/docs/tutorial
./website/docusaurus.config.js
./website/package.json
./website/sidebars.js
./website/src
./website/src/components
./website/src/css
./website/src/pages
./website/static
./website/static/CNAME
./website/static/img
./website/static/plugins
./website/yarn.lock
```
Turn 1at 54 s386 tokens out3,991 prompt tokens
The user is reporting a bug in `hydra` where config files with a dot in their filename (e.g., `0.1.yaml`) are not being loaded correctly, resulting in a `hydra.errors.MissingConfigException`.
The traceback points to `hydra/_internal/config_loader.py` in `_merge_config` (or `merge_defaults` calling it).

Looking at the traceback:
- `hydra/_internal/hydra.py` line 345, in `_load_config`
- `hydra/_internal/config_loader.py` line 56, in `load_configuration`
- `hydra/_internal/config_loader.py` line 395, in `_merge_defaults`
- `hydra/_internal/config_loader.py` line 374, in `merge_defaults`
- `hydra/_internal/config_loader.py` line 301, in `_merge_config`

The error message is `hydra.errors.MissingConfigException: Could not load lr/0.1, available options: lr: 0.01 0.1`.
It seems Hydra is looking for `lr/0.1` but the file is named `0.1.yaml`. Usually, Hydra should handle the extension. If the filename contains a dot, it might be misidentifying the extension or failing to append it correctly when looking for the file.

Let's start by exploring the code in `hydra/_internal/config_loader.py`.
TOOL CALL · run_command
{
  "command": "grep -rn --include=\"*.py\" \"MissingConfigException\" hydra/_internal/config_loader.py"
}
Result of run_command 253 characters
{
  "status": "ok",
  "stdout": "18:from ..errors import MissingConfigException\n299:                    raise MissingConfigException(msg, new_cfg)\n308:                    raise MissingConfigException(msg, new_cfg, options)\n",
  "stderr": "",
  "exit_code": 0
}
Turn 2at 58 s65 tokens out4,464 prompt tokens
The traceback said line 301 in `_merge_config`. Let's see the code around there.
TOOL CALL · read_file
{
  "filepath": "hydra/_internal/config_loader.py`,start_line:250,end_line:350"
}
Result of read_file 493 characters
{
  "status": "error",
  "error_type": "FileReadError",
  "error_message": "404 Client Error for http+docker://localhost/v1.52/containers/adfa7a41a6024f1fa9917d6ed643d285b542fd9a9f38f7e1c1a1f8807cc83168/archive?path=%2Fworkspace%2Fhydra%2F_internal%2Fconfig_loader.py%60%2Cstart_line%3A250%2Cend_line%3A350: Not Found (\"Could not find the file /workspace/hydra/_internal/config_loader.py`,start_line:250,end_line:350 in container adfa7a41a6024f1fa9917d6ed643d285b542fd9a9f38f7e1c1a1f8807cc83168\")"
}
Turn 3at 72 s200 tokens out4,798 prompt tokens
Wait, I made a mistake in `read_file`? No, the error message is strange: `Could not find the file /workspace/hydra/_internal/config_loader.py`,start_line:250,end_line:350`. It looks like the arguments were interpreted as part of the path. I should check my tool call.

Ah, I see. I called `read_file` with `filepath="hydra/_internal/config_loader.py", start_line=250, end_line=350`.
Wait, the error message shows backticks and commas in the path. This is very strange. Let me try again.

Actually, I'll just read the file normally.
TOOL CALL · read_file
{
  "end_line": 350,
  "filepath": "hydra/_internal/config_loader.py",
  "start_line": 250
}
Result of read_file 4,265 characters
{
  "status": "ok",
  "filepath": "hydra/_internal/config_loader.py",
  "content": "                    \"{}/{}\".format(path, group_name)\n                )\n                if self._exists(is_pkg, path) and resource_isdir(\n                    module_name, resource_name\n                ):\n                    all_files = resource_listdir(module_name, resource_name)\n                    files = []\n                    for file in all_files:\n                        if (\n                            file_type == \"dir\"\n                            and resource_isdir(\n                                module_name, os.path.join(group_name, file)\n                            )\n                            and file != \"__pycache__\"\n                        ):\n                            files.append(file)\n                        elif file_type == \"file\" and file.endswith(\".yaml\"):\n                            files.append(file[0 : -len(\".yaml\")])\n            else:\n                group_path = \"{}/{}\".format(path, group_name)\n                if os.path.isdir(group_path):\n                    all_files = os.listdir(group_path)\n                    files = []\n                    for file in all_files:\n                        full_path = os.path.join(group_path, group_name, file)\n                        if (\n                            file_type == \"dir\"\n                            and os.path.isdir(full_path)\n                            and file != \"__pycache__\"\n                        ):\n                            files.append(file)\n                        elif file_type == \"file\" and file.endswith(\".yaml\"):\n                            files.append(file[0 : -len(\".yaml\")])\n\n            options.extend(files)\n        return options\n\n    def _merge_config(self, cfg, family, name, required):\n\n        if family != \"\":\n            new_cfg = \"{}/{}\".format(family, name)\n        else:\n            new_cfg = name\n\n        loaded_cfg = self._load_config_impl(new_cfg)\n        if loaded_cfg is None:\n            if required:\n                if family == \"\":\n                    msg = \"Could not load {}\".format(new_cfg)\n                    raise MissingConfigException(msg, new_cfg)\n                else:\n                    options = self.get_group_options(family)\n                    if options:\n                        msg = \"Could not load {}, available options:\\n{}:\\n\\t{}\".format(\n                            new_cfg, family, \"\\n\\t\".join(options)\n                        )\n                    else:\n                        msg = \"Could not load {}\".format(new_cfg)\n                    raise MissingConfigException(msg, new_cfg, options)\n            else:\n                return cfg\n\n        else:\n            return OmegaConf.merge(cfg, loaded_cfg)\n\n        assert False\n\n    @staticmethod\n    def _split_module_and_resource(filename):\n        sep = filename.find(\"/\")\n        if sep == -1:\n            module_name = filename\n            resource_name = \"\"\n        else:\n            module_name = filename[0:sep]\n            resource_name = filename[sep + 1 :]\n        if module_name == \"\":\n            # if we have a module a module only, dirname would return nothing and basename would return the module.\n            module_name = resource_name\n            resource_name = \"\"\n\n        return module_name, resource_name\n\n    @staticmethod\n    def _exists(is_pkg, filename):\n        if is_pkg:\n            module_name, resource_name = ConfigLoader._split_module_and_resource(\n                filename\n            )\n            try:\n                ret = resource_exists(module_name, resource_name)\n            except ImportError:\n                ret = False\n            except ValueError:  # Python 2.7 throws ValueError empty module name sometimes.\n                ret = False\n            except NotImplementedError:\n                raise NotImplementedError(\n                    \"Unable to load {}/{}, are you missing an __init__.py?\".format(\n                        module_name, resource_name\n                    )\n                )",
  "start_line": 250,
  "end_line": 350,
  "total_lines": 453,
  "is_truncated": false
}
Turn 4at 87 s138 tokens out6,020 prompt tokens
The `_merge_config` method (lines 273-297) calls `self._load_config_impl(new_cfg)`.
If `loaded_cfg` is `None` and `required` is `True`, it raises `MissingConfigException`.

The issue is that `_load_config_impl` probably fails to find the config file if the name contains a dot.

Let's find `_load_config_impl`.
TOOL CALL · run_command
{
  "command": "grep -rn \"def _load_config_impl\" hydra/_internal/config_loader.py"
}
Result of run_command 128 characters
{
  "status": "ok",
  "stdout": "201:    def _load_config_impl(self, input_file, record_load=True):\n",
  "stderr": "",
  "exit_code": 0
}
Turn 5at 92 s54 tokens out6,222 prompt tokens
Let's read `_load_config_impl`.
TOOL CALL · read_file
{
  "end_line": 230,
  "filepath": "hydra/_internal/config_loader.py",
  "start_line": 180
}
Result of read_file 2,210 characters
{
  "status": "ok",
  "filepath": "hydra/_internal/config_loader.py",
  "content": "            key1 = next(keys_iter)\n            if key1 == \"optional\":\n                key1 = next(keys_iter)\n            return key1\n\n        key_to_idx = {}\n        for idx, d in enumerate(primary):\n            if isinstance(d, (dict, DictConfig)):\n                key = get_key(d)\n                key_to_idx[key] = idx\n        for d in copy.deepcopy(merged_list):\n            if isinstance(d, (dict, DictConfig)):\n                key = get_key(d)\n                if key in key_to_idx.keys():\n                    idx = key_to_idx[key]\n                    primary[idx] = d\n                    merged_list.remove(d)\n\n        for d in merged_list:\n            primary.append(d)\n\n    def _load_config_impl(self, input_file, record_load=True):\n        \"\"\"\n        :param input_file:\n        :param record_load:\n        :return: the loaded config or None if it was not found\n        \"\"\"\n        loaded_cfg = None\n        filename, search_path = self._find_config(input_file)\n        if search_path is None and record_load:\n            assert search_path is None\n            self.all_config_checked.append((filename, None, None))\n\n        if search_path is not None:\n            fullpath = \"{}/{}\".format(search_path.path, filename)\n            is_pkg = search_path.path.startswith(\"pkg://\")\n            if is_pkg:\n                fullpath = fullpath[len(\"pkg://\") :]\n                module_name, resource_name = ConfigLoader._split_module_and_resource(\n                    fullpath\n                )\n                with resource_stream(module_name, resource_name) as stream:\n                    loaded_cfg = OmegaConf.load(stream)\n                if record_load:\n                    self.all_config_checked.append(\n                        (filename, search_path.path, search_path.provider)\n                    )\n            elif os.path.exists(fullpath):\n                loaded_cfg = OmegaConf.load(fullpath)\n                if record_load:\n                    self.all_config_checked.append(",
  "start_line": 180,
  "end_line": 230,
  "total_lines": 453,
  "is_truncated": false
}
Turn 6at 96 s68 tokens out6,895 prompt tokens
`_load_config_impl` calls `self._find_config(input_file)`. Let's look at `_find_config`.
TOOL CALL · run_command
{
  "command": "grep -rn \"def _find_config\" hydra/_internal/config_loader.py"
}
Result of run_command 103 characters
{
  "status": "ok",
  "stdout": "117:    def _find_config(self, filepath):\n",
  "stderr": "",
  "exit_code": 0
}
Turn 7at 100 s52 tokens out7,017 prompt tokens
Let's read `_find_config`.
TOOL CALL · read_file
{
  "end_line": 160,
  "filepath": "hydra/_internal/config_loader.py",
  "start_line": 117
}
Result of read_file 1,873 characters
{
  "status": "ok",
  "filepath": "hydra/_internal/config_loader.py",
  "content": "    def _find_config(self, filepath):\n        found_search_path = None\n        for search_path in self.config_search_path.config_search_path:\n            is_pkg, path = self._split_path(search_path.path)\n            config_file = \"{}/{}\".format(path, filepath)\n            if self._exists(is_pkg, config_file):\n                found_search_path = search_path\n                break\n        return filepath, found_search_path\n\n    @staticmethod\n    def _split_key_val(s):\n        assert \"=\" in s, \"'{}' not a valid override, expecting key=value format\".format(\n            s\n        )\n\n        idx = s.find(\"=\")\n        assert idx != -1\n        return s[0:idx], s[idx + 1 :]\n\n    @staticmethod\n    def _apply_defaults_overrides(overrides, defaults):\n        consumed = []\n        key_to_idx = {}\n        for idx, d in enumerate(defaults):\n            if isinstance(d, DictConfig):\n                key = next(iter(d.keys()))\n                key_to_idx[key] = idx\n        for override in copy.deepcopy(overrides):\n            key, value = ConfigLoader._split_key_val(override)\n            if key in key_to_idx:\n                if \",\" in value:\n                    # If this is a multirun config (comma separated list), flag the default to prevent it from being\n                    # loaded until we are constructing the config for individual jobs.\n                    value = \"_SKIP_\"\n\n                if value == \"null\":\n                    del defaults[key_to_idx[key]]\n                else:\n                    defaults[key_to_idx[key]][key] = value\n\n                overrides.remove(override)\n                consumed.append(override)\n        return consumed",
  "start_line": 117,
  "end_line": 160,
  "total_lines": 453,
  "is_truncated": false
}
Turn 8at 116 s303 tokens out7,609 prompt tokens
In `_find_config`:
```python
    def _find_config(self, filepath):
        found_search_path = None
        for search_path in self.config_search_path.config_search_path:
            is_pkg, path = self._split_path(search_path.path)
            config_file = "{}/{}".format(path, filepath)
            if self._exists(is_pkg, config_file):
                found_search_path = search_path
                break
        return filepath, found_search_path
```
And `_exists` (which we saw before):
```python
    @staticmethod
    def _exists(is_pkg, filename):
        if is_pkg:
            module_name, resource_name = ConfigLoader._split_module_and_resource(
                filename
            )
            try:
                ret = resource_exists(module_name, resource_name)
            except ImportError:
                ret = False
            # ...
```
Wait, I don't see where it adds `.yaml`. Let's check `_exists` again, maybe there's more to it.
TOOL CALL · read_file
{
  "end_line": 350,
  "filepath": "hydra/_internal/config_loader.py",
  "start_line": 330
}
Result of read_file 937 characters
{
  "status": "ok",
  "filepath": "hydra/_internal/config_loader.py",
  "content": "\n        return module_name, resource_name\n\n    @staticmethod\n    def _exists(is_pkg, filename):\n        if is_pkg:\n            module_name, resource_name = ConfigLoader._split_module_and_resource(\n                filename\n            )\n            try:\n                ret = resource_exists(module_name, resource_name)\n            except ImportError:\n                ret = False\n            except ValueError:  # Python 2.7 throws ValueError empty module name sometimes.\n                ret = False\n            except NotImplementedError:\n                raise NotImplementedError(\n                    \"Unable to load {}/{}, are you missing an __init__.py?\".format(\n                        module_name, resource_name\n                    )\n                )",
  "start_line": 330,
  "end_line": 350,
  "total_lines": 453,
  "is_truncated": false
}
Turn 9at 123 s79 tokens out8,159 prompt tokens
The `_exists` function seems incomplete in the `read_file` output (it's truncated or just ends there). Let's read the rest of `_exists`.
TOOL CALL · read_file
{
  "end_line": 370,
  "filepath": "hydra/_internal/config_loader.py",
  "start_line": 330
}
Result of read_file 1,880 characters
{
  "status": "ok",
  "filepath": "hydra/_internal/config_loader.py",
  "content": "\n        return module_name, resource_name\n\n    @staticmethod\n    def _exists(is_pkg, filename):\n        if is_pkg:\n            module_name, resource_name = ConfigLoader._split_module_and_resource(\n                filename\n            )\n            try:\n                ret = resource_exists(module_name, resource_name)\n            except ImportError:\n                ret = False\n            except ValueError:  # Python 2.7 throws ValueError empty module name sometimes.\n                ret = False\n            except NotImplementedError:\n                raise NotImplementedError(\n                    \"Unable to load {}/{}, are you missing an __init__.py?\".format(\n                        module_name, resource_name\n                    )\n                )\n            # Uncomment to debug issues with configs not getting loaded.\n            # WARNING: breaks integration tests that relies on specified output from the process.\n            # print(\"_exists? {}, {} == {}\".format(module_name, resource_name, ret))\n            return ret\n        else:\n            return os.path.exists(filename)\n\n    def _merge_defaults(self, cfg, defaults, split_at):\n        def get_filename(config_name):\n            filename, ext = os.path.splitext(config_name)\n            if ext == \"\":\n                ext = \".yaml\"\n            return \"{}{}\".format(filename, ext)\n\n        def merge_defaults(merged_cfg, def_list):\n            cfg_with_list = OmegaConf.create(dict(defaults=def_list))\n            for default1 in cfg_with_list.defaults:\n                if isinstance(default1, DictConfig):\n                    is_optional = False\n                    if default1.optional is not None:",
  "start_line": 330,
  "end_line": 370,
  "total_lines": 453,
  "is_truncated": false
}
Turn 10at 146 s361 tokens out8,718 prompt tokens
In `_exists`:
```python
    @staticmethod
    def _exists(is_pkg, filename):
        if is_pkg:
            # ...
            return ret
        else:
            return os.path.exists(filename)
```
It just calls `os.path.exists(filename)`. It doesn't seem to add `.yaml` if it's missing.
Wait, if it doesn't add `.yaml`, how does Hydra normally find `.yaml` files when we just specify `lr=0.1`?

Let's look at `_merge_defaults`. It has a `get_filename` helper:
```python
    def _merge_defaults(self, cfg, defaults, split_at):
        def get_filename(config_name):
            filename, ext = os.path.splitext(config_name)
            if ext == "":
                ext = ".yaml"
            return "{}{}".format(filename, ext)
```
This looks like the culprit! `os.path.splitext('0.1')` will return `('0', '.1')`. So `ext` is `'.1'`, which is not `""`, so it returns `'0.1'`. But we want it to return `'0.1.yaml'`.

Wait, where is `get_filename` used? I only see it defined in `_merge_defaults`. Let's read more of `_merge_defaults`.
TOOL CALL · read_file
{
  "end_line": 410,
  "filepath": "hydra/_internal/config_loader.py",
  "start_line": 365
}
Result of read_file 2,099 characters
{
  "status": "ok",
  "filepath": "hydra/_internal/config_loader.py",
  "content": "        def merge_defaults(merged_cfg, def_list):\n            cfg_with_list = OmegaConf.create(dict(defaults=def_list))\n            for default1 in cfg_with_list.defaults:\n                if isinstance(default1, DictConfig):\n                    is_optional = False\n                    if default1.optional is not None:\n                        is_optional = default1.optional\n                        del default1[\"optional\"]\n                    family = next(iter(default1.keys()))\n                    name = default1[family]\n                    # Name is none if default value is removed\n                    if name is not None and \"_SKIP_\" not in name:\n                        merged_cfg = self._merge_config(\n                            cfg=merged_cfg,\n                            family=family,\n                            name=get_filename(name),\n                            required=not is_optional,\n                        )\n                else:\n                    assert isinstance(default1, str)\n                    if \"_SKIP_\" not in default1:\n                        merged_cfg = self._merge_config(\n                            cfg=merged_cfg,\n                            family=\"\",\n                            name=get_filename(default1),\n                            required=True,\n                        )\n            return merged_cfg\n\n        system_list = []\n        user_list = []\n        for default in defaults:\n            if len(system_list) < split_at:\n                system_list.append(default)\n            else:\n                user_list.append(default)\n        cfg = merge_defaults(cfg, system_list)\n        cfg = merge_defaults(cfg, user_list)\n\n        if \"defaults\" in cfg:\n            del cfg[\"defaults\"]\n        return cfg\n\n    def _create_cfg(self, cfg_filename, record_load=True):\n        if cfg_filename is None:\n            cfg = OmegaConf.create()",
  "start_line": 365,
  "end_line": 410,
  "total_lines": 453,
  "is_truncated": false
}
Turn 11at 239 s1,375 tokens out9,591 prompt tokens
Yes, `get_filename(name)` is used when calling `_merge_config`:
```python
                        merged_cfg = self._merge_config(
                            cfg=merged_cfg,
                            family=family,
                            name=get_filename(name),
                            required=not is_optional,
                        )
```
And `get_filename` is:
```python
        def get_filename(config_name):
            filename, ext = os.path.splitext(config_name)
            if ext == "":
                ext = ".yaml"
            return "{}{}".format(filename, ext)
```
If `name` is `"0.1"`, `os.path.splitext("0.1")` returns `('0', '.1')`. `ext` is `'.1'`, so it returns `'0.1'`. Then `_merge_config` calls `_load_config_impl("lr/0.1")` (if `family="lr"`).
Then `_load_config_impl` calls `_find_config("lr/0.1")`.
Then `_find_config` checks `os.path.exists("conf/lr/0.1")` (assuming `conf` is the search path).
But the file is actually `conf/lr/0.1.yaml`.

So `get_filename` should check if the extension is one of the supported extensions (like `.yaml`). If not, it should add `.yaml`.

Wait, Hydra supports `.yaml` files. Does it support others?
The problem description says "erroneously misses the `.yaml` extension".

If `config_name` is `0.1`, we want `0.1.yaml`.
If `config_name` is `config.yaml`, we want `config.yaml`.
If `config_name` is `config`, we want `config.yaml`.

Current logic:
- `config_name = "config"` -> `splitext` -> `('config', '')` -> `ext == ""` -> returns `"config.yaml"` (Correct)
- `config_name = "config.yaml"` -> `splitext` -> `('config', '.yaml')` -> `ext != ""` -> returns `"config.yaml"` (Correct)
- `config_name = "0.1"` -> `splitext` -> `('0', '.1')` -> `ext != ""` -> returns `"0.1"` (Incorrect! Should be `"0.1.yaml"`)

So we should check if `ext` is `.yaml`. If not, and it's empty or just some other thing, should we still add `.yaml`?
Usually, Hydra configs are `.yaml`.

If I change it to:
```python
        def get_filename(config_name):
            filename, ext = os.path.splitext(config_name)
            if ext != ".yaml":
                ext = ".yaml"
            return "{}{}".format(filename, ext)
```
Wait, if `config_name` is `0.1`, `filename` is `0`, `ext` is `.1`. This would return `0.yaml`. That's also wrong. We want `0.1.yaml`.

If the user provides `0.1`, they mean the file `0.1.yaml`.
If the user provides `config.yaml`, they mean the file `config.yaml`.

So we should check if `config_name` ends with `.yaml`. If not, append `.yaml`.

Wait, what if the file has another extension that Hydra supports? (Actually, looking at the code, it seems only `.yaml` is mentioned in a few places, e.g., line 266: `elif file_type == "file" and file.endswith(".yaml"):`).

Let's see if there are other extensions supported.
Line 266: `elif file_type == "file" and file.endswith(".yaml"):`
Line 283: `elif file_type == "file" and file.endswith(".yaml"):`
It seems only `.yaml` is supported.

So `get_filename` should be:
```python
        def get_filename(config_name):
            if not config_name.endswith(".yaml"):
                return config_name + ".yaml"
            return config_name
```
But wait, if `config_name` is `config.yaml`, this returns `config.yaml`.
If `config_name` is `0.1`, this returns `0.1.yaml`.
If `config_name` is `config`, this returns `config.yaml`.
This seems correct.

Let's verify the current implementation again.
```python
        def get_filename(config_name):
            filename, ext = os.path.splitext(config_name)
            if ext == "":
                ext = ".yaml"
            return "{}{}".format(filename, ext)
```
For `config_name = "0.1"`, `os.path.splitext("0.1")` returns `('0', '.1')`.
`ext` is `'.1'`, so it returns `'0.1'`. Correct, this is the bug.

Wait, what if `config_name` was `my.config.yaml`?
`os.path.splitext("my.config.yaml")` returns `('my.config', '.yaml')`.
`ext` is `'.yaml'`, so it returns `'my.config.yaml'`. Correct.

What if `config_name` was `my.config`?
`os.path.splitext("my.config")` returns `('my', '.config')`.
`ext` is `'.config'`, so it returns `'my.config'`. Incorrect, should be `my.config.yaml`.

So the logic should be: if it doesn't end with `.yaml`, append `.yaml`.

Wait, I should check if Hydra supports other extensions. Let's search for `.yaml` in the whole repo to see if there are others like `.yml`.
Turn 12at 239 s
call:run_command{command:<|"|>grep -rn "\.yaml" hydra/_internal/ | head -n 20<|"|>}<tool_call|>
System instructions 124 characters
Please continue your work using the available tools, or call submit_patch when you have completed and verified your changes.
Turn 13at 398 s2,204 tokens out8,305 prompt tokens
The user reported that when a YAML file has a dot in its base name (e.g., `0.1.yaml`), Hydra fails to load it, resulting in a `MissingConfigException`.

Looking at the code in `hydra/_internal/config_loader.py`:

```python
    def _merge_defaults(self, cfg, defaults, split_at):
        def get_filename(config_name):
            filename, ext = os.path.splitext(config_name)
            if ext == "":
                ext = ".yaml"
            return "{}{}".format(filename, ext)
```

When `config_name` is `0.1`, `os.path.splitext("0.1")` returns `('0', '.1')`.
Then `ext` is `.1`, which is not `""`, so it returns `0.1`.
But the actual file on disk is `0.1.yaml`.
So it tries to load `0.1` (without `.yaml`), which doesn't exist.

Wait, let's re-read the reproduction:
```
configuration groups:
├── conf
│   └── lr
│       ├── 0.1.yaml
│       └── 0.01.yaml
└── my_app.py
```
Command: `python my_app.py lr=0.1`

In `_merge_defaults`, `get_filename` is used.
If `name` is `0.1`, `os.path.splitext("0.1")` gives `filename='0', ext='.1'`.
`ext` is not `""`, so it returns `filename + ext` which is `0.1`.
Then it calls `self._merge_config(..., name='0.1', ...)`.
`_merge_config` calls `self._load_config_impl('lr/0.1')`.
`_load_config_impl` calls `self._find_config('lr/0.1')`.
`_find_config` does:
```python
    def _find_config(self, filepath):
        found_search_path = None
        for search_path in self.config_search_path.config_search_path:
            is_pkg, path = self._split_path(search_path.path)
            config_file = "{}/{}".format(path, filepath)
            if self._exists(is_pkg, config_file):
                found_search_path = search_path
                break
        return filepath, found_search_path
```
And `_exists`:
```python
    @staticmethod
    def _exists(is_pkg, filename):
        if is_pkg:
            # ... resource_exists ...
        else:
            return os.path.exists(filename)
```
Since `filepath` is `lr/0.1`, `config_file` becomes `path/lr/0.1`.
`os.path.exists('path/lr/0.1')` is False because the file is `path/lr/0.1.yaml`.

So the bug is indeed in `get_filename` in `_merge_defaults`. It assumes that if there's a dot, it must be the extension. However, Hydra configs are expected to have `.yaml` (or `.yml` probably, but the code explicitly checks for `.yaml` in some places).

Actually, `get_filename` should check if the extension is one of the supported extensions.
Wait, let's see if Hydra supports other extensions.
In `get_group_options` (which I saw earlier):
```python
                        elif file_type == "file" and file.endswith(".yaml"):
                            files.append(file[0 : -len(".yaml")])
```
It seems it only cares about `.yaml`.

If the file is `0.1.yaml`, Hydra wants to be able to refer to it as `0.1`.
If `config_name` is `0.1`, `os.path.splitext("0.1")` returns `('0', '.1')`.
`get_filename` returns `0.1`.

If we change `get_filename` to:
```python
        def get_filename(config_name):
            if config_name.endswith((".yaml", ".yml")):
                return config_name
            return config_name + ".yaml"
```
Wait, what if the user provided `0.1.yaml` explicitly as the config name in the defaults list?
`os.path.splitext("0.1.yaml")` returns `('0.1', '.yaml')`.
`ext` is `.yaml`, so it returns `0.1.yaml`. This is correct.

But if `config_name` is `0.1`, `os.path.splitext("0.1")` returns `('0', '.1')`.
`ext` is `.1`, so it returns `0.1`. This is incorrect.

The fix should be to check if `ext` is actually `.yaml` or `.yml`.
Or more simply, just append `.yaml` if it doesn't already end with it.

Wait, the `get_group_options` code shows that it strips `.yaml` from the end to get the options.
```python
                        elif file_type == "file" and file.endswith(".yaml"):
                            files.append(file[0 : -len(".yaml")])
```
So if we have `0.1.yaml`, the option is `0.1`.
When the user selects `0.1`, we need to get back to `0.1.yaml`.

Let's try to reproduce this.
TOOL CALL · write_file
{
  "content": "import os\nfrom hydra import HydraConfig\nfrom hydra.core.config_store import ConfigStore\nfrom omegaconf import OmegaConf\nfrom hydra._internal.config_loader import ConfigLoader\nfrom hydra._internal.config_search_path import ConfigSearchPath\n\n# Mocking the environment as described in the issue\n# configuration groups:\n# ├── conf\n# │   └── lr\n# │       ├── 0.1.yaml\n# │       └── 0.01.yaml\n# └── my_app.py\n\nos.makedirs(\"conf/lr\", exist_ok=True)\nwith open(\"conf/lr/0.1.yaml\", \"w\") as f:\n    f.write(\"val: 0.1\")\nwith open(\"conf/lr/0.01.yaml\", \"w\") as f:\n    f.write(\"val: 0.01\")\n\n# We need a basic config to load\nwith open(\"conf/config.yaml\", \"w\") as f:\n    f.write(\"defaults:\\n  - lr: 0.01\")\n\n# Initialize ConfigLoader\n# In a real scenario, Hydra does this. We'll try to simulate it.\nfrom hydra._internal.config_search_path import ConfigSearchPath\n\nsearch_path = ConfigSearchPath(path=\"conf\")\nloader = ConfigLoader(config_search_path=[search_path])\n\n# Try to load lr=0.1\ntry:\n    # We simulate what happens during override processing.\n    # The problem is in _merge_defaults.\n    # Let's try to trigger it using a similar flow.\n    \n    # Create a dummy cfg for merging\n    cfg = OmegaConf.create()\n    defaults = [\n        # Using DictConfig style for the defaults list\n        OmegaConf.create({\"lr\": \"0.1\"})\n    ]\n    \n    # Call _merge_defaults\n    # _merge_defaults(cfg, defaults, split_at)\n    # Note: defaults in _merge_defaults is expected to be the list of defaults\n    # from the config file + overrides.\n    \n    print(\"Testing _merge_defaults with lr=0.1\")\n    # We need to pass the defaults as a list of OmegaConf objects if they are groups\n    # In my_app.py lr=0.1, the default for lr becomes '0.1'\n    \n    # This is a bit tricky to call directly because it's an internal method and depends on state\n    # Let's just use the actual Hydra entry point if possible, or a smaller piece.\n    \n    # Actually, looking at the traceback:\n    # _merge_defaults -> merge_defaults -> _merge_config -> _load_config_impl -> _find_config\n    \n    # Let's try to use the actual hydra.main or hydra.run simulation.\n    # But that's complex. Let's just call _merge_defaults.\n    \n    # We need to mock the ConfigLoader's dependencies\n    # The ConfigLoader initialization usually takes a config_search_path.\n    # Let's try this:\n    \n    from hydra._internal.config_loader import ConfigLoader\n    \n    # We need a mock SearchPath\n    class MockSearchPath:\n        def __init__(self, path):\n            self.path = path\n            self.provider = \"path\"\n    \n    loader = ConfigLoader(config_search_path=[MockSearchPath(\"conf\")])\n    \n    # Mock the defaults list as it would be after overrides they looks like:\n    # [OmegaConf.create({\"lr\": \"0.1\"})]\n    \n    cfg = OmegaConf.create()\n    defaults = [OmegaConf.create({\"lr\": \"0.1\"})]\n    \n    # Call the method\n    loader._merge_defaults(cfg, defaults, split_at=0)\n    print(\"Successfully loaded!\")\nexcept Exception as e:\n    import traceback\n    traceback.print_exc()\n",
  "filepath": "/tmp/repro.py"
}
Result of write_file 136 characters
{
  "status": "error",
  "error_type": "FileWriteError",
  "error_message": "Path traversal detected: '/tmp/repro.py' escapes workspace root."
}
Turn 14at 423 s539 tokens out10,564 prompt tokens
Ah, right, I should write the reproduction file inside `/workspace` or run it inline. The instructions say: "Never leave reproduction or scratch files inside /workspace — run reproductions inline via `python3 - <<'PY'` or inside `/tmp/repro.py` in a single `run_command`." Actually, I tried `/tmp/repro.py` but it seems the `write_file` tool doesn't allow writing outside `/workspace`. I should use `run_command` with `python3 - <<'PY'`.

Wait, the `write_file` error says "Path traversal detected". I should use `run_command`.
TOOL CALL · run_command
{
  "command": "python3 - <<'PY'\nimport os\nimport sys\nfrom omegaconf import OmegaConf, DictConfig\nfrom hydra._internal.config_loader import ConfigLoader\n\n# Mocking the environment\nos.makedirs(\"conf/lr\", exist_ok=True)\nwith open(\"conf/lr/0.1.yaml\", \"w\") as f:\n    f.write(\"val: 0.1\")\nwith open(\"conf/lr/0.01.yaml\", \"w\") as f:\n    f.write(\"val: 0.01\")\n\n# Mock SearchPath\nclass MockSearchPath:\n    def __init__(self, path):\n        self.path = path\n        self.provider = \"path\"\n\n# ConfigLoader expects a list of config_search_path objects\n# We'll use a simple list and mock the necessary parts of ConfigSearchPath\nclass MockSearchPathList:\n    def __init__(self, paths):\n        self.config_search_path = paths\n\nloader = ConfigLoader(config_search_path=MockSearchPathList([MockSearchPath(\"conf\")]))\n\n# Try to load lr=0.1\ntry:\n    cfg = OmegaConf.create()\n    # In _merge_defaults, defaults is a list of config items\n    # For a group default: {\"lr\": \"0.1\"}\n    defaults = [OmegaConf.create({\"lr\": \"0.1\"})]\n    \n    print(\"Testing _merge_defaults with lr=0.1\")\n    loader._merge_defaults(cfg, defaults, split_at=0)\n    print(\"Successfully loaded!\")\nexcept Exception as e:\n    import traceback\n    traceback.print_exc()\nPY\n"
}
Result of run_command 473 characters
{
  "status": "error",
  "error_type": "CommandError",
  "error_message": "Traceback (most recent call last):\n  File \"<stdin>\", line 25, in <module>\nTypeError: __init__() missing 2 required positional arguments: 'config_file' and 'strict_cfg'\n",
  "details": {
    "stdout": "",
    "stderr": "Traceback (most recent call last):\n  File \"<stdin>\", line 25, in <module>\nTypeError: __init__() missing 2 required positional arguments: 'config_file' and 'strict_cfg'\n",
    "exit_code": 1
  }
}
Turn 15at 427 s75 tokens out11,260 prompt tokens
It seems `ConfigLoader.__init__` requires more arguments. Let me check `hydra/_internal/config_loader.py`'s `__init__`.
TOOL CALL · read_file
{
  "end_line": 100,
  "filepath": "hydra/_internal/config_loader.py",
  "start_line": 1
}
Result of read_file 3,768 characters
{
  "status": "ok",
  "filepath": "hydra/_internal/config_loader.py",
  "content": "# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved\n\"\"\"\nConfiguration loader\n\"\"\"\n\nimport copy\nimport os\n\nfrom omegaconf import OmegaConf, DictConfig, ListConfig, open_dict\nfrom pkg_resources import (\n    resource_stream,\n    resource_exists,\n    resource_listdir,\n    resource_isdir,\n)\n\nfrom .config_search_path import ConfigSearchPath\nfrom ..errors import MissingConfigException\nfrom ..plugins.common.utils import JobRuntime\n\n\nclass ConfigLoader:\n    \"\"\"\n    Configuration loader\n    \"\"\"\n\n    def __init__(self, config_file, strict_cfg, config_search_path):\n        assert isinstance(config_search_path, ConfigSearchPath)\n        self.config_file = config_file\n        self.config_search_path = config_search_path\n        self.all_config_checked = []\n        self.strict_cfg = strict_cfg\n\n    def load_configuration(self, overrides=[]):\n        assert overrides is None or isinstance(overrides, list)\n        overrides = overrides or []\n\n        # Load hydra config\n        hydra_cfg = self._create_cfg(cfg_filename=\"hydra.yaml\")\n\n        # Load job config\n        job_cfg = self._create_cfg(cfg_filename=self.config_file, record_load=False)\n\n        defaults = hydra_cfg.defaults or []\n        if self.config_file is not None:\n            defaults.append(self.config_file)\n        split_at = len(defaults)\n        ConfigLoader._merge_default_lists(defaults, job_cfg.defaults or [])\n        consumed = self._apply_defaults_overrides(overrides, defaults)\n\n        consumed_free_job_defaults = self._apply_free_defaults(defaults, overrides)\n\n        ConfigLoader._validate_defaults(defaults)\n\n        # Load and defaults and merge them into cfg\n        cfg = self._merge_defaults(hydra_cfg, defaults, split_at)\n\n        job = OmegaConf.create(dict(name=JobRuntime().get(\"name\")))\n        cfg.hydra.job = OmegaConf.merge(job, cfg.hydra.job)\n\n        OmegaConf.set_struct(cfg, self.strict_cfg)\n\n        # Merge all command line overrides after enabling strict flag\n        all_consumed = consumed + consumed_free_job_defaults\n        remaining_overrides = [x for x in overrides if x not in all_consumed]\n        cfg.merge_with_dotlist(remaining_overrides)\n\n        remaining = consumed + consumed_free_job_defaults + remaining_overrides\n\n        def is_hydra(x):\n            return x.startswith(\"hydra.\") or x.startswith(\"hydra/\")\n\n        cfg.hydra.overrides.task = [x for x in remaining if not is_hydra(x)]\n        cfg.hydra.overrides.hydra = [x for x in remaining if is_hydra(x)]\n\n        return cfg\n\n    def load_sweep_config(self, master_config, sweep_overrides):\n        # Recreate the config for this sweep instance with the appropriate overrides\n        overrides = master_config.hydra.overrides.hydra.to_container() + sweep_overrides\n        sweep_config = self.load_configuration(overrides)\n\n        with open_dict(sweep_config):\n            sweep_config.hydra.runtime = master_config.hydra.runtime\n\n        # Copy old config cache to ensure we get the same resolved values (for things like timestamps etc)\n        OmegaConf.copy_cache(from_config=master_config, to_config=sweep_config)\n\n        return sweep_config\n\n    def exists_in_search_path(self, filepath):\n        _filename, search_path = self._find_config(filepath)\n        return search_path is not None\n\n    def exists(self, filename):\n        is_pkg, path = self._split_path(filename)\n        return ConfigLoader._exists(is_pkg, path)\n\n    def get_search_path(self):\n        return self.config_search_path",
  "start_line": 1,
  "end_line": 100,
  "total_lines": 453,
  "is_truncated": false
}
Turn 16at 450 s475 tokens out12,458 prompt tokens
Okay, `ConfigLoader.__init__` takes `config_file`, `strict_cfg`, and `config_search_path`.

```python
    def __init__(self, config_file, strict_cfg, config_search_path):
        assert isinstance(config_search_path, ConfigSearchPath)
        self.config_file = config_file
        self.config_search_path = config_search_path
        self.all_config_checked = []
        self.strict_cfg = strict_cfg
```

Let me update the reproduction script.
TOOL CALL · run_command
{
  "command": "python3 - <<'PY'\nimport os\nfrom omegaconf import OmegaConf\nfrom hydra._internal.config_loader import ConfigLoader\nfrom hydra._internal.config_search_path import ConfigSearchPath\n\n# Mocking the environment\nos.makedirs(\"conf/lr\", exist_ok=True)\nwith open(\"conf/lr/0.1.yaml\", \"w\") as f:\n    f.write(\"val: 0.1\")\nwith open(\"conf/lr/0.01.yaml\", \"w\") as f:\n    f.write(\"val: 0.01\")\n\n# We can use the actual ConfigSearchPath\nsearch_path = ConfigSearchPath(path=\"conf\")\nloader = ConfigLoader(config_file=\"config.yaml\", strict_cfg=False, config_search_path=search_path)\n\n# Try to load lr=0.1\ntry:\n    # Mock a hydra_cfg for _merge_defaults\n    hydra_cfg = OmegaConf.create({\"hydra\": {\"overrides\": {\"task\": [], \"hydra\": []}}})\n    defaults = [OmegaConf.create({\"lr\": \"0.1\"})]\n    \n    print(\"Testing _merge_defaults with lr=0.1\")\n    loader._merge_defaults(hydra_cfg, defaults, split_at=0)\n    print(\"Successfully loaded!\")\nexcept Exception as e:\n    import traceback\n    traceback.print_exc()\nPY\n"
}
Result of run_command 413 characters
{
  "status": "error",
  "error_type": "CommandError",
  "error_message": "Traceback (most recent call last):\n  File \"<stdin>\", line 14, in <module>\nTypeError: __init__() got an unexpected keyword argument 'path'\n",
  "details": {
    "stdout": "",
    "stderr": "Traceback (most recent call last):\n  File \"<stdin>\", line 14, in <module>\nTypeError: __init__() got an unexpected keyword argument 'path'\n",
    "exit_code": 1
  }
}
Turn 17at 453 s65 tokens out13,070 prompt tokens
It seems `ConfigSearchPath` also doesn't take `path` as a keyword argument. Let me check `hydra/_internal/config_search_path.py`.
TOOL CALL · read_file
{
  "filepath": "hydra/_internal/config_search_path.py"
}
Result of read_file 3,127 characters
{
  "status": "ok",
  "filepath": "hydra/_internal/config_search_path.py",
  "content": "# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved\n\n\nclass ConfigSearchPath:\n    def __init__(self):\n        self.config_search_path = []\n\n    def find_last_match(self, reference):\n        return self.find_match(reference, reverse=True)\n\n    def find_first_match(self, reference):\n        return self.find_match(reference, reverse=False)\n\n    def find_match(self, reference, reverse):\n        p = self.config_search_path\n        if reverse:\n            iterator = zip(reversed(range(len(p))), reversed(p))\n        else:\n            iterator = zip(range(len(p)), p)\n        for idx, sp in iterator:\n            has_prov = reference.provider is not None\n            has_path = reference.path is not None\n            if has_prov and has_path:\n                if reference.provider == sp.provider and reference.path == sp.path:\n                    return idx\n            elif has_prov:\n                if reference.provider == sp.provider:\n                    return idx\n            elif has_path:\n                if reference.path == sp.path:\n                    return idx\n            else:\n                assert False\n        return -1\n\n    def append(self, provider, path, anchor=None):\n        \"\"\"\n        :param provider: who is providing this search path, can be Hydra,\n               the @hydra.main() function, or individual plugins or libraries.\n        :param path: path element, can be a file system path or a package path (For example pkg://hydra.conf)\n        :param anchor: if string, acts as provider. if SearchPath can be used to match against provider and / or path\n        :return:\n        \"\"\"\n        if anchor is None:\n            self.config_search_path.append(SearchPath(provider, path))\n        else:\n            if isinstance(anchor, str):\n                anchor = SearchPath(anchor, None)\n\n            idx = self.find_last_match(anchor)\n            if idx != -1:\n                self.config_search_path.insert(idx + 1, SearchPath(provider, path))\n            else:\n                self.append(provider, path, anchor=None)\n\n    def prepend(self, provider, path, anchor=None):\n        if anchor is None:\n            self.config_search_path.insert(0, SearchPath(provider, path))\n        else:\n            if isinstance(anchor, str):\n                anchor = SearchPath(anchor, None)\n\n            idx = self.find_first_match(anchor)\n            if idx != -1:\n                if idx > 0:\n                    self.config_search_path.insert(idx, SearchPath(provider, path))\n                else:\n                    self.prepend(provider, path, None)\n            else:\n                self.prepend(provider, path, None)\n\n\nclass SearchPath:\n    def __init__(self, provider, search_path):\n        self.provider = provider\n        self.path = search_path\n\n    def __str__(self):\n        return \"provider={}, path={}\".format(self.provider, self.path)",
  "start_line": 1,
  "end_line": 79,
  "total_lines": 79,
  "is_truncated": false
}
Turn 18at 468 s360 tokens out13,979 prompt tokens
`ConfigSearchPath` has `append(provider, path, anchor=None)`.

Let me try the reproduction script again.
TOOL CALL · run_command
{
  "command": "python3 - <<'PY'\nimport os\nfrom omegaconf import OmegaConf\nfrom hydra._internal.config_loader import ConfigLoader\nfrom hydra._internal.config_search_path import ConfigSearchPath\n\n# Mocking the environment\nos.makedirs(\"conf/lr\", exist_ok=True)\nwith open(\"conf/lr/0.1.yaml\", \"w\") as f:\n    f.write(\"val: 0.1\")\nwith open(\"conf/lr/0.01.yaml\", \"w\") as f:\n    f.write(\"val: 0.01\")\n\nsearch_path = ConfigSearchPath()\nsearch_path.append(\"test\", \"conf\")\nloader = ConfigLoader(config_file=\"config.yaml\", strict_cfg=False, config_search_path=search_path)\n\n# Try to load lr=0.1\ntry:\n    hydra_cfg = OmegaConf.create({\"hydra\": {\"overrides\": {\"task\": [], \"hydra\": []}}})\n    defaults = [OmegaConf.create({\"lr\": \"0.1\"})]\n    \n    print(\"Testing _merge_defaults with lr=0.1\")\n    loader._merge_defaults(hydra_cfg, defaults, split_at=0)\n    print(\"Successfully loaded!\")\nexcept Exception as e:\n    import traceback\n    traceback.print_exc()\nPY\n"
}
Result of run_command 660 characters
{
  "status": "ok",
  "stdout": "Testing _merge_defaults with lr=0.1\n",
  "stderr": "Traceback (most recent call last):\n  File \"<stdin>\", line 23, in <module>\n  File \"/workspace/hydra/_internal/config_loader.py\", line 402, in _merge_defaults\n    cfg = merge_defaults(cfg, user_list)\n  File \"/workspace/hydra/_internal/config_loader.py\", line 381, in merge_defaults\n    required=not is_optional,\n  File \"/workspace/hydra/_internal/config_loader.py\", line 308, in _merge_config\n    raise MissingConfigException(msg, new_cfg, options)\nhydra.errors.MissingConfigException: Could not load lr/0.1, available options:\nlr:\n\t0.1\n\t0.01\n",
  "exit_code": 0
}

Model calls (not matched to turns)

Generated tokens 386 tokens · stopped: STOP
The user is reporting a bug in `hydra` where config files with a dot in their filename (e.g., `0.1.yaml`) are not being loaded correctly, resulting in a `hydra.errors.MissingConfigException`.
The traceback points to `hydra/_internal/config_loader.py` in `_merge_config` (or `merge_defaults` calling it).

Looking at the traceback:
- `hydra/_internal/hydra.py` line 345, in `_load_config`
- `hydra/_internal/config_loader.py` line 56, in `load_configuration`
- `hydra/_internal/config_loader.py` line 395, in `_merge_defaults`
- `hydra/_internal/config_loader.py` line 374, in `merge_defaults`
- `hydra/_internal/config_loader.py` line 301, in `_merge_config`

The error message is `hydra.errors.MissingConfigException: Could not load lr/0.1, available options: lr: 0.01 0.1`.
It seems Hydra is looking for `lr/0.1` but the file is named `0.1.yaml`. Usually, Hydra should handle the extension. If the filename contains a dot, it might be misidentifying the extension or failing to append it correctly when looking for the file.

Let's start by exploring the code in `hydra/_internal/config_loader.py`.
<|channel>thought The user is reporting a bug in `hydra` where config files with a dot in their filename (e.g., `0.1.yaml`) are not being loaded correctly, resulting in a `hydra.errors.MissingConfigException`. The traceback points to `hydra/_internal/config_loader.py` in `_merge_config` (or `merge_defaults` calling it). Looking at the traceback: - `hydra/_internal/hydra.py` line 345, in `_load_config` - `hydra/_internal/config_loader.py` line 56, in `load_configuration` - `hydra/_internal/config_loader.py` line 395, in `_merge_defaults` - `hydra/_internal/config_loader.py` line 374, in `merge_defaults` - `hydra/_internal/config_loader.py` line 301, in `_merge_config` The error message is `hydra.errors.MissingConfigException: Could not load lr/0.1, available options: lr: 0.01 0.1`. It seems Hydra is looking for `lr/0.1` but the file is named `0.1.yaml`. Usually, Hydra should handle the extension. If the filename contains a dot, it might be misidentifying the extension or failing to append it correctly when looking for the file. Let's start by exploring the code in `hydra/_internal/config_loader.py`.<channel|><|tool_call>call:run_command{command:<|"|>grep -rn --include="*.py" "MissingConfigException" hydra/_internal/config_loader.py<|"|>}<tool_call|><|tool_response>
Generated tokens 65 tokens · stopped: STOP
The traceback said line 301 in `_merge_config`. Let's see the code around there.
The traceback said line 301 in `_merge_config`. Let's see the code around there. <channel|><|tool_call>call:read_file{filepath:<|"|>hydra/_internal/config_loader.py`,start_line:250,end_line:350}<tool_call|><|tool_response>
Generated tokens 200 tokens · stopped: STOP
Wait, I made a mistake in `read_file`? No, the error message is strange: `Could not find the file /workspace/hydra/_internal/config_loader.py`,start_line:250,end_line:350`. It looks like the arguments were interpreted as part of the path. I should check my tool call.

Ah, I see. I called `read_file` with `filepath="hydra/_internal/config_loader.py", start_line=250, end_line=350`.
Wait, the error message shows backticks and commas in the path. This is very strange. Let me try again.

Actually, I'll just read the file normally.
Wait, I made a mistake in `read_file`? No, the error message is strange: `Could not find the file /workspace/hydra/_internal/config_loader.py`,start_line:250,end_line:350`. It looks like the arguments were interpreted as part of the path. I should check my tool call. Ah, I see. I called `read_file` with `filepath="hydra/_internal/config_loader.py", start_line=250, end_line=350`. Wait, the error message shows backticks and commas in the path. This is very strange. Let me try again. Actually, I'll just read the file normally. <channel|><|tool_call>call:read_file{end_line:350,filepath:<|"|>hydra/_internal/config_loader.py<|"|>,start_line:250}<tool_call|><|tool_response>
Generated tokens 138 tokens · stopped: STOP
The `_merge_config` method (lines 273-297) calls `self._load_config_impl(new_cfg)`.
If `loaded_cfg` is `None` and `required` is `True`, it raises `MissingConfigException`.

The issue is that `_load_config_impl` probably fails to find the config file if the name contains a dot.

Let's find `_load_config_impl`.

The `_merge_config` method (lines 273-297) calls `self._load_config_impl(new_cfg)`. If `loaded_cfg` is `None` and `required` is `True`, it raises `MissingConfigException`. The issue is that `_load_config_impl` probably fails to find the config file if the name contains a dot. Let's find `_load_config_impl`. <channel|><|tool_call>call:run_command{command:<|"|>grep -rn "def _load_config_impl" hydra/_internal/config_loader.py<|"|>}<tool_call|><|tool_response>
Generated tokens 54 tokens · stopped: STOP
Let's read `_load_config_impl`.

Let's read `_load_config_impl`. <channel|><|tool_call>call:read_file{end_line:230,filepath:<|"|>hydra/_internal/config_loader.py<|"|>,start_line:180}<tool_call|><|tool_response>
Generated tokens 68 tokens · stopped: STOP
`_load_config_impl` calls `self._find_config(input_file)`. Let's look at `_find_config`.

`_load_config_impl` calls `self._find_config(input_file)`. Let's look at `_find_config`. <channel|><|tool_call>call:run_command{command:<|"|>grep -rn "def _find_config" hydra/_internal/config_loader.py<|"|>}<tool_call|><|tool_response>
Generated tokens 52 tokens · stopped: STOP
Let's read `_find_config`.


Let's read `_find_config`. <channel|><|tool_call>call:read_file{end_line:160,filepath:<|"|>hydra/_internal/config_loader.py<|"|>,start_line:117}<tool_call|><|tool_response>
Generated tokens 303 tokens · stopped: STOP
In `_find_config`:
```python
    def _find_config(self, filepath):
        found_search_path = None
        for search_path in self.config_search_path.config_search_path:
            is_pkg, path = self._split_path(search_path.path)
            config_file = "{}/{}".format(path, filepath)
            if self._exists(is_pkg, config_file):
                found_search_path = search_path
                break
        return filepath, found_search_path
```
And `_exists` (which we saw before):
```python
    @staticmethod
    def _exists(is_pkg, filename):
        if is_pkg:
            module_name, resource_name = ConfigLoader._split_module_and_resource(
                filename
            )
            try:
                ret = resource_exists(module_name, resource_name)
            except ImportError:
                ret = False
            # ...
```
Wait, I don't see where it adds `.yaml`. Let's check `_exists` again, maybe there's more to it.

In `_find_config`: ```python def _find_config(self, filepath): found_search_path = None for search_path in self.config_search_path.config_search_path: is_pkg, path = self._split_path(search_path.path) config_file = "{}/{}".format(path, filepath) if self._exists(is_pkg, config_file): found_search_path = search_path break return filepath, found_search_path ``` And `_exists` (which we saw before): ```python @staticmethod def _exists(is_pkg, filename): if is_pkg: module_name, resource_name = ConfigLoader._split_module_and_resource( filename ) try: ret = resource_exists(module_name, resource_name) except ImportError: ret = False # ... ``` Wait, I don't see where it adds `.yaml`. Let's check `_exists` again, maybe there's more to it. <channel|><|tool_call>call:read_file{end_line:350,filepath:<|"|>hydra/_internal/config_loader.py<|"|>,start_line:330}<tool_call|><|tool_response>
Generated tokens 79 tokens · stopped: STOP
The `_exists` function seems incomplete in the `read_file` output (it's truncated or just ends there). Let's read the rest of `_exists`.


The `_exists` function seems incomplete in the `read_file` output (it's truncated or just ends there). Let's read the rest of `_exists`. <channel|><|tool_call>call:read_file{end_line:370,filepath:<|"|>hydra/_internal/config_loader.py<|"|>,start_line:330}<tool_call|><|tool_response>
Generated tokens 361 tokens · stopped: STOP
In `_exists`:
```python
    @staticmethod
    def _exists(is_pkg, filename):
        if is_pkg:
            # ...
            return ret
        else:
            return os.path.exists(filename)
```
It just calls `os.path.exists(filename)`. It doesn't seem to add `.yaml` if it's missing.
Wait, if it doesn't add `.yaml`, how does Hydra normally find `.yaml` files when we just specify `lr=0.1`?

Let's look at `_merge_defaults`. It has a `get_filename` helper:
```python
    def _merge_defaults(self, cfg, defaults, split_at):
        def get_filename(config_name):
            filename, ext = os.path.splitext(config_name)
            if ext == "":
                ext = ".yaml"
            return "{}{}".format(filename, ext)
```
This looks like the culprit! `os.path.splitext('0.1')` will return `('0', '.1')`. So `ext` is `'.1'`, which is not `""`, so it returns `'0.1'`. But we want it to return `'0.1.yaml'`.

Wait, where is `get_filename` used? I only see it defined in `_merge_defaults`. Let's read more of `_merge_defaults`.



In `_exists`: ```python @staticmethod def _exists(is_pkg, filename): if is_pkg: # ... return ret else: return os.path.exists(filename) ``` It just calls `os.path.exists(filename)`. It doesn't seem to add `.yaml` if it's missing. Wait, if it doesn't add `.yaml`, how does Hydra normally find `.yaml` files when we just specify `lr=0.1`? Let's look at `_merge_defaults`. It has a `get_filename` helper: ```python def _merge_defaults(self, cfg, defaults, split_at): def get_filename(config_name): filename, ext = os.path.splitext(config_name) if ext == "": ext = ".yaml" return "{}{}".format(filename, ext) ``` This looks like the culprit! `os.path.splitext('0.1')` will return `('0', '.1')`. So `ext` is `'.1'`, which is not `""`, so it returns `'0.1'`. But we want it to return `'0.1.yaml'`. Wait, where is `get_filename` used? I only see it defined in `_merge_defaults`. Let's read more of `_merge_defaults`. <channel|><|tool_call>call:read_file{end_line:410,filepath:<|"|>hydra/_internal/config_loader.py<|"|>,start_line:365}<tool_call|><|tool_response>
Generated tokens 1,375 tokens · stopped: STOP
Yes, `get_filename(name)` is used when calling `_merge_config`:
```python
                        merged_cfg = self._merge_config(
                            cfg=merged_cfg,
                            family=family,
                            name=get_filename(name),
                            required=not is_optional,
                        )
```
And `get_filename` is:
```python
        def get_filename(config_name):
            filename, ext = os.path.splitext(config_name)
            if ext == "":
                ext = ".yaml"
            return "{}{}".format(filename, ext)
```
If `name` is `"0.1"`, `os.path.splitext("0.1")` returns `('0', '.1')`. `ext` is `'.1'`, so it returns `'0.1'`. Then `_merge_config` calls `_load_config_impl("lr/0.1")` (if `family="lr"`).
Then `_load_config_impl` calls `_find_config("lr/0.1")`.
Then `_find_config` checks `os.path.exists("conf/lr/0.1")` (assuming `conf` is the search path).
But the file is actually `conf/lr/0.1.yaml`.

So `get_filename` should check if the extension is one of the supported extensions (like `.yaml`). If not, it should add `.yaml`.

Wait, Hydra supports `.yaml` files. Does it support others?
The problem description says "erroneously misses the `.yaml` extension".

If `config_name` is `0.1`, we want `0.1.yaml`.
If `config_name` is `config.yaml`, we want `config.yaml`.
If `config_name` is `config`, we want `config.yaml`.

Current logic:
- `config_name = "config"` -> `splitext` -> `('config', '')` -> `ext == ""` -> returns `"config.yaml"` (Correct)
- `config_name = "config.yaml"` -> `splitext` -> `('config', '.yaml')` -> `ext != ""` -> returns `"config.yaml"` (Correct)
- `config_name = "0.1"` -> `splitext` -> `('0', '.1')` -> `ext != ""` -> returns `"0.1"` (Incorrect! Should be `"0.1.yaml"`)

So we should check if `ext` is `.yaml`. If not, and it's empty or just some other thing, should we still add `.yaml`?
Usually, Hydra configs are `.yaml`.

If I change it to:
```python
        def get_filename(config_name):
            filename, ext = os.path.splitext(config_name)
            if ext != ".yaml":
                ext = ".yaml"
            return "{}{}".format(filename, ext)
```
Wait, if `config_name` is `0.1`, `filename` is `0`, `ext` is `.1`. This would return `0.yaml`. That's also wrong. We want `0.1.yaml`.

If the user provides `0.1`, they mean the file `0.1.yaml`.
If the user provides `config.yaml`, they mean the file `config.yaml`.

So we should check if `config_name` ends with `.yaml`. If not, append `.yaml`.

Wait, what if the file has another extension that Hydra supports? (Actually, looking at the code, it seems only `.yaml` is mentioned in a few places, e.g., line 266: `elif file_type == "file" and file.endswith(".yaml"):`).

Let's see if there are other extensions supported.
Line 266: `elif file_type == "file" and file.endswith(".yaml"):`
Line 283: `elif file_type == "file" and file.endswith(".yaml"):`
It seems only `.yaml` is supported.

So `get_filename` should be:
```python
        def get_filename(config_name):
            if not config_name.endswith(".yaml"):
                return config_name + ".yaml"
            return config_name
```
But wait, if `config_name` is `config.yaml`, this returns `config.yaml`.
If `config_name` is `0.1`, this returns `0.1.yaml`.
If `config_name` is `config`, this returns `config.yaml`.
This seems correct.

Let's verify the current implementation again.
```python
        def get_filename(config_name):
            filename, ext = os.path.splitext(config_name)
            if ext == "":
                ext = ".yaml"
            return "{}{}".format(filename, ext)
```
For `config_name = "0.1"`, `os.path.splitext("0.1")` returns `('0', '.1')`.
`ext` is `'.1'`, so it returns `'0.1'`. Correct, this is the bug.

Wait, what if `config_name` was `my.config.yaml`?
`os.path.splitext("my.config.yaml")` returns `('my.config', '.yaml')`.
`ext` is `'.yaml'`, so it returns `'my.config.yaml'`. Correct.

What if `config_name` was `my.config`?
`os.path.splitext("my.config")` returns `('my', '.config')`.
`ext` is `'.config'`, so it returns `'my.config'`. Incorrect, should be `my.config.yaml`.

So the logic should be: if it doesn't end with `.yaml`, append `.yaml`.

Wait, I should check if Hydra supports other extensions. Let's search for `.yaml` in the whole repo to see if there are others like `.yml`.


Yes, `get_filename(name)` is used when calling `_merge_config`: ```python merged_cfg = self._merge_config( cfg=merged_cfg, family=family, name=get_filename(name), required=not is_optional, ) ``` And `get_filename` is: ```python def get_filename(config_name): filename, ext = os.path.splitext(config_name) if ext == "": ext = ".yaml" return "{}{}".format(filename, ext) ``` If `name` is `"0.1"`, `os.path.splitext("0.1")` returns `('0', '.1')`. `ext` is `'.1'`, so it returns `'0.1'`. Then `_merge_config` calls `_load_config_impl("lr/0.1")` (if `family="lr"`). Then `_load_config_impl` calls `_find_config("lr/0.1")`. Then `_find_config` checks `os.path.exists("conf/lr/0.1")` (assuming `conf` is the search path). But the file is actually `conf/lr/0.1.yaml`. So `get_filename` should check if the extension is one of the supported extensions (like `.yaml`). If not, it should add `.yaml`. Wait, Hydra supports `.yaml` files. Does it support others? The problem description says "erroneously misses the `.yaml` extension". If `config_name` is `0.1`, we want `0.1.yaml`. If `config_name` is `config.yaml`, we want `config.yaml`. If `config_name` is `config`, we want `config.yaml`. Current logic: - `config_name = "config"` -> `splitext` -> `('config', '')` -> `ext == ""` -> returns `"config.yaml"` (Correct) - `config_name = "config.yaml"` -> `splitext` -> `('config', '.yaml')` -> `ext != ""` -> returns `"config.yaml"` (Correct) - `config_name = "0.1"` -> `splitext` -> `('0', '.1')` -> `ext != ""` -> returns `"0.1"` (Incorrect! Should be `"0.1.yaml"`) So we should check if `ext` is `.yaml`. If not, and it's empty or just some other thing, should we still add `.yaml`? Usually, Hydra configs are `.yaml`. If I change it to: ```python def get_filename(config_name): filename, ext = os.path.splitext(config_name) if ext != ".yaml": ext = ".yaml" return "{}{}".format(filename, ext) ``` Wait, if `config_name` is `0.1`, `filename` is `0`, `ext` is `.1`. This would return `0.yaml`. That's also wrong. We want `0.1.yaml`. If the user provides `0.1`, they mean the file `0.1.yaml`. If the user provides `config.yaml`, they mean the file `config.yaml`. So we should check if `config_name` ends with `.yaml`. If not, append `.yaml`. Wait, what if the file has another extension that Hydra supports? (Actually, looking at the code, it seems only `.yaml` is mentioned in a few places, e.g., line 266: `elif file_type == "file" and file.endswith(".yaml"):`). Let's see if there are other extensions supported. Line 266: `elif file_type == "file" and file.endswith(".yaml"):` Line 283: `elif file_type == "file" and file.endswith(".yaml"):` It seems only `.yaml` is supported. So `get_filename` should be: ```python def get_filename(config_name): if not config_name.endswith(".yaml"): return config_name + ".yaml" return config_name ``` But wait, if `config_name` is `config.yaml`, this returns `config.yaml`. If `config_name` is `0.1`, this returns `0.1.yaml`. If `config_name` is `config`, this returns `config.yaml`. This seems correct. Let's verify the current implementation again. ```python def get_filename(config_name): filename, ext = os.path.splitext(config_name) if ext == "": ext = ".yaml" return "{}{}".format(filename, ext) ``` For `config_name = "0.1"`, `os.path.splitext("0.1")` returns `('0', '.1')`. `ext` is `'.1'`, so it returns `'0.1'`. Correct, this is the bug. Wait, what if `config_name` was `my.config.yaml`? `os.path.splitext("my.config.yaml")` returns `('my.config', '.yaml')`. `ext` is `'.yaml'`, so it returns `'my.config.yaml'`. Correct. What if `config_name` was `my.config`? `os.path.splitext("my.config")` returns `('my', '.config')`. `ext` is `'.config'`, so it returns `'my.config'`. Incorrect, should be `my.config.yaml`. So the logic should be: if it doesn't end with `.yaml`, append `.yaml`. Wait, I should check if Hydra supports other extensions. Let's search for `.yaml` in the whole repo to see if there are others like `.yml`. <channel|>call:run_command{command:<|"|>grep -rn "\.yaml" hydra/_internal/ | head -n 20<|"|>}<tool_call|><|tool_response>
Generated tokens 2,204 tokens · stopped: STOP
The user reported that when a YAML file has a dot in its base name (e.g., `0.1.yaml`), Hydra fails to load it, resulting in a `MissingConfigException`.

Looking at the code in `hydra/_internal/config_loader.py`:

```python
    def _merge_defaults(self, cfg, defaults, split_at):
        def get_filename(config_name):
            filename, ext = os.path.splitext(config_name)
            if ext == "":
                ext = ".yaml"
            return "{}{}".format(filename, ext)
```

When `config_name` is `0.1`, `os.path.splitext("0.1")` returns `('0', '.1')`.
Then `ext` is `.1`, which is not `""`, so it returns `0.1`.
But the actual file on disk is `0.1.yaml`.
So it tries to load `0.1` (without `.yaml`), which doesn't exist.

Wait, let's re-read the reproduction:
```
configuration groups:
├── conf
│   └── lr
│       ├── 0.1.yaml
│       └── 0.01.yaml
└── my_app.py
```
Command: `python my_app.py lr=0.1`

In `_merge_defaults`, `get_filename` is used.
If `name` is `0.1`, `os.path.splitext("0.1")` gives `filename='0', ext='.1'`.
`ext` is not `""`, so it returns `filename + ext` which is `0.1`.
Then it calls `self._merge_config(..., name='0.1', ...)`.
`_merge_config` calls `self._load_config_impl('lr/0.1')`.
`_load_config_impl` calls `self._find_config('lr/0.1')`.
`_find_config` does:
```python
    def _find_config(self, filepath):
        found_search_path = None
        for search_path in self.config_search_path.config_search_path:
            is_pkg, path = self._split_path(search_path.path)
            config_file = "{}/{}".format(path, filepath)
            if self._exists(is_pkg, config_file):
                found_search_path = search_path
                break
        return filepath, found_search_path
```
And `_exists`:
```python
    @staticmethod
    def _exists(is_pkg, filename):
        if is_pkg:
            # ... resource_exists ...
        else:
            return os.path.exists(filename)
```
Since `filepath` is `lr/0.1`, `config_file` becomes `path/lr/0.1`.
`os.path.exists('path/lr/0.1')` is False because the file is `path/lr/0.1.yaml`.

So the bug is indeed in `get_filename` in `_merge_defaults`. It assumes that if there's a dot, it must be the extension. However, Hydra configs are expected to have `.yaml` (or `.yml` probably, but the code explicitly checks for `.yaml` in some places).

Actually, `get_filename` should check if the extension is one of the supported extensions.
Wait, let's see if Hydra supports other extensions.
In `get_group_options` (which I saw earlier):
```python
                        elif file_type == "file" and file.endswith(".yaml"):
                            files.append(file[0 : -len(".yaml")])
```
It seems it only cares about `.yaml`.

If the file is `0.1.yaml`, Hydra wants to be able to refer to it as `0.1`.
If `config_name` is `0.1`, `os.path.splitext("0.1")` returns `('0', '.1')`.
`get_filename` returns `0.1`.

If we change `get_filename` to:
```python
        def get_filename(config_name):
            if config_name.endswith((".yaml", ".yml")):
                return config_name
            return config_name + ".yaml"
```
Wait, what if the user provided `0.1.yaml` explicitly as the config name in the defaults list?
`os.path.splitext("0.1.yaml")` returns `('0.1', '.yaml')`.
`ext` is `.yaml`, so it returns `0.1.yaml`. This is correct.

But if `config_name` is `0.1`, `os.path.splitext("0.1")` returns `('0', '.1')`.
`ext` is `.1`, so it returns `0.1`. This is incorrect.

The fix should be to check if `ext` is actually `.yaml` or `.yml`.
Or more simply, just append `.yaml` if it doesn't already end with it.

Wait, the `get_group_options` code shows that it strips `.yaml` from the end to get the options.
```python
                        elif file_type == "file" and file.endswith(".yaml"):
                            files.append(file[0 : -len(".yaml")])
```
So if we have `0.1.yaml`, the option is `0.1`.
When the user selects `0.1`, we need to get back to `0.1.yaml`.

Let's try to reproduce this.
<|channel>thought The user reported that when a YAML file has a dot in its base name (e.g., `0.1.yaml`), Hydra fails to load it, resulting in a `MissingConfigException`. Looking at the code in `hydra/_internal/config_loader.py`: ```python def _merge_defaults(self, cfg, defaults, split_at): def get_filename(config_name): filename, ext = os.path.splitext(config_name) if ext == "": ext = ".yaml" return "{}{}".format(filename, ext) ``` When `config_name` is `0.1`, `os.path.splitext("0.1")` returns `('0', '.1')`. Then `ext` is `.1`, which is not `""`, so it returns `0.1`. But the actual file on disk is `0.1.yaml`. So it tries to load `0.1` (without `.yaml`), which doesn't exist. Wait, let's re-read the reproduction: ``` configuration groups: ├── conf │ └── lr │ ├── 0.1.yaml │ └── 0.01.yaml └── my_app.py ``` Command: `python my_app.py lr=0.1` In `_merge_defaults`, `get_filename` is used. If `name` is `0.1`, `os.path.splitext("0.1")` gives `filename='0', ext='.1'`. `ext` is not `""`, so it returns `filename + ext` which is `0.1`. Then it calls `self._merge_config(..., name='0.1', ...)`. `_merge_config` calls `self._load_config_impl('lr/0.1')`. `_load_config_impl` calls `self._find_config('lr/0.1')`. `_find_config` does: ```python def _find_config(self, filepath): found_search_path = None for search_path in self.config_search_path.config_search_path: is_pkg, path = self._split_path(search_path.path) config_file = "{}/{}".format(path, filepath) if self._exists(is_pkg, config_file): found_search_path = search_path break return filepath, found_search_path ``` And `_exists`: ```python @staticmethod def _exists(is_pkg, filename): if is_pkg: # ... resource_exists ... else: return os.path.exists(filename) ``` Since `filepath` is `lr/0.1`, `config_file` becomes `path/lr/0.1`. `os.path.exists('path/lr/0.1')` is False because the file is `path/lr/0.1.yaml`. So the bug is indeed in `get_filename` in `_merge_defaults`. It assumes that if there's a dot, it must be the extension. However, Hydra configs are expected to have `.yaml` (or `.yml` probably, but the code explicitly checks for `.yaml` in some places). Actually, `get_filename` should check if the extension is one of the supported extensions. Wait, let's see if Hydra supports other extensions. In `get_group_options` (which I saw earlier): ```python elif file_type == "file" and file.endswith(".yaml"): files.append(file[0 : -len(".yaml")]) ``` It seems it only cares about `.yaml`. If the file is `0.1.yaml`, Hydra wants to be able to refer to it as `0.1`. If `config_name` is `0.1`, `os.path.splitext("0.1")` returns `('0', '.1')`. `get_filename` returns `0.1`. If we change `get_filename` to: ```python def get_filename(config_name): if config_name.endswith((".yaml", ".yml")): return config_name return config_name + ".yaml" ``` Wait, what if the user provided `0.1.yaml` explicitly as the config name in the defaults list? `os.path.splitext("0.1.yaml")` returns `('0.1', '.yaml')`. `ext` is `.yaml`, so it returns `0.1.yaml`. This is correct. But if `config_name` is `0.1`, `os.path.splitext("0.1")` returns `('0', '.1')`. `ext` is `.1`, so it returns `0.1`. This is incorrect. The fix should be to check if `ext` is actually `.yaml` or `.yml`. Or more simply, just append `.yaml` if it doesn't already end with it. Wait, the `get_group_options` code shows that it strips `.yaml` from the end to get the options. ```python elif file_type == "file" and file.endswith(".yaml"): files.append(file[0 : -len(".yaml")]) ``` So if we have `0.1.yaml`, the option is `0.1`. When the user selects `0.1`, we need to get back to `0.1.yaml`. Let's try to reproduce this.<channel|><|tool_call>call:write_file{content:<|"|>import os from hydra import HydraConfig from hydra.core.config_store import ConfigStore from omegaconf import OmegaConf from hydra._internal.config_loader import ConfigLoader from hydra._internal.config_search_path import ConfigSearchPath # Mocking the environment as described in the issue # configuration groups: # ├── conf # │ └── lr # │ ├── 0.1.yaml # │ └── 0.01.yaml # └── my_app.py os.makedirs("conf/lr", exist_ok=True) with open("conf/lr/0.1.yaml", "w") as f: f.write("val: 0.1") with open("conf/lr/0.01.yaml", "w") as f: f.write("val: 0.01") # We need a basic config to load with open("conf/config.yaml", "w") as f: f.write("defaults:\n - lr: 0.01") # Initialize ConfigLoader # In a real scenario, Hydra does this. We'll try to simulate it. from hydra._internal.config_search_path import ConfigSearchPath search_path = ConfigSearchPath(path="conf") loader = ConfigLoader(config_search_path=[search_path]) # Try to load lr=0.1 try: # We simulate what happens during override processing. # The problem is in _merge_defaults. # Let's try to trigger it using a similar flow. # Create a dummy cfg for merging cfg = OmegaConf.create() defaults = [ # Using DictConfig style for the defaults list OmegaConf.create({"lr": "0.1"}) ] # Call _merge_defaults # _merge_defaults(cfg, defaults, split_at) # Note: defaults in _merge_defaults is expected to be the list of defaults # from the config file + overrides. print("Testing _merge_defaults with lr=0.1") # We need to pass the defaults as a list of OmegaConf objects if they are groups # In my_app.py lr=0.1, the default for lr becomes '0.1' # This is a bit tricky to call directly because it's an internal method and depends on state # Let's just use the actual Hydra entry point if possible, or a smaller piece. # Actually, looking at the traceback: # _merge_defaults -> merge_defaults -> _merge_config -> _load_config_impl -> _find_config # Let's try to use the actual hydra.main or hydra.run simulation. # But that's complex. Let's just call _merge_defaults. # We need to mock the ConfigLoader's dependencies # The ConfigLoader initialization usually takes a config_search_path. # Let's try this: from hydra._internal.config_loader import ConfigLoader # We need a mock SearchPath class MockSearchPath: def __init__(self, path): self.path = path self.provider = "path" loader = ConfigLoader(config_search_path=[MockSearchPath("conf")]) # Mock the defaults list as it would be after overrides they looks like: # [OmegaConf.create({"lr": "0.1"})] cfg = OmegaConf.create() defaults = [OmegaConf.create({"lr": "0.1"})] # Call the method loader._merge_defaults(cfg, defaults, split_at=0) print("Successfully loaded!") except Exception as e: import traceback traceback.print_exc() <|"|>,filepath:<|"|>/tmp/repro.py<|"|>}<tool_call|><|tool_response>
Generated tokens 539 tokens · stopped: STOP
Ah, right, I should write the reproduction file inside `/workspace` or run it inline. The instructions say: "Never leave reproduction or scratch files inside /workspace — run reproductions inline via `python3 - <<'PY'` or inside `/tmp/repro.py` in a single `run_command`." Actually, I tried `/tmp/repro.py` but it seems the `write_file` tool doesn't allow writing outside `/workspace`. I should use `run_command` with `python3 - <<'PY'`.

Wait, the `write_file` error says "Path traversal detected". I should use `run_command`.
Ah, right, I should write the reproduction file inside `/workspace` or run it inline. The instructions say: "Never leave reproduction or scratch files inside /workspace — run reproductions inline via `python3 - <<'PY'` or inside `/tmp/repro.py` in a single `run_command`." Actually, I tried `/tmp/repro.py` but it seems the `write_file` tool doesn't allow writing outside `/workspace`. I should use `run_command` with `python3 - <<'PY'`. Wait, the `write_file` error says "Path traversal detected". I should use `run_command`. <channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY' import os import sys from omegaconf import OmegaConf, DictConfig from hydra._internal.config_loader import ConfigLoader # Mocking the environment os.makedirs("conf/lr", exist_ok=True) with open("conf/lr/0.1.yaml", "w") as f: f.write("val: 0.1") with open("conf/lr/0.01.yaml", "w") as f: f.write("val: 0.01") # Mock SearchPath class MockSearchPath: def __init__(self, path): self.path = path self.provider = "path" # ConfigLoader expects a list of config_search_path objects # We'll use a simple list and mock the necessary parts of ConfigSearchPath class MockSearchPathList: def __init__(self, paths): self.config_search_path = paths loader = ConfigLoader(config_search_path=MockSearchPathList([MockSearchPath("conf")])) # Try to load lr=0.1 try: cfg = OmegaConf.create() # In _merge_defaults, defaults is a list of config items # For a group default: {"lr": "0.1"} defaults = [OmegaConf.create({"lr": "0.1"})] print("Testing _merge_defaults with lr=0.1") loader._merge_defaults(cfg, defaults, split_at=0) print("Successfully loaded!") except Exception as e: import traceback traceback.print_exc() PY <|"|>}<tool_call|><|tool_response>
Generated tokens 75 tokens · stopped: STOP
It seems `ConfigLoader.__init__` requires more arguments. Let me check `hydra/_internal/config_loader.py`'s `__init__`.
It seems `ConfigLoader.__init__` requires more arguments. Let me check `hydra/_internal/config_loader.py`'s `__init__`. <channel|><|tool_call>call:read_file{end_line:100,filepath:<|"|>hydra/_internal/config_loader.py<|"|>,start_line:1}<tool_call|><|tool_response>
Generated tokens 475 tokens · stopped: STOP
Okay, `ConfigLoader.__init__` takes `config_file`, `strict_cfg`, and `config_search_path`.

```python
    def __init__(self, config_file, strict_cfg, config_search_path):
        assert isinstance(config_search_path, ConfigSearchPath)
        self.config_file = config_file
        self.config_search_path = config_search_path
        self.all_config_checked = []
        self.strict_cfg = strict_cfg
```

Let me update the reproduction script.
Okay, `ConfigLoader.__init__` takes `config_file`, `strict_cfg`, and `config_search_path`. ```python def __init__(self, config_file, strict_cfg, config_search_path): assert isinstance(config_search_path, ConfigSearchPath) self.config_file = config_file self.config_search_path = config_search_path self.all_config_checked = [] self.strict_cfg = strict_cfg ``` Let me update the reproduction script. <channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY' import os from omegaconf import OmegaConf from hydra._internal.config_loader import ConfigLoader from hydra._internal.config_search_path import ConfigSearchPath # Mocking the environment os.makedirs("conf/lr", exist_ok=True) with open("conf/lr/0.1.yaml", "w") as f: f.write("val: 0.1") with open("conf/lr/0.01.yaml", "w") as f: f.write("val: 0.01") # We can use the actual ConfigSearchPath search_path = ConfigSearchPath(path="conf") loader = ConfigLoader(config_file="config.yaml", strict_cfg=False, config_search_path=search_path) # Try to load lr=0.1 try: # Mock a hydra_cfg for _merge_defaults hydra_cfg = OmegaConf.create({"hydra": {"overrides": {"task": [], "hydra": []}}}) defaults = [OmegaConf.create({"lr": "0.1"})] print("Testing _merge_defaults with lr=0.1") loader._merge_defaults(hydra_cfg, defaults, split_at=0) print("Successfully loaded!") except Exception as e: import traceback traceback.print_exc() PY <|"|>}<tool_call|><|tool_response>
Generated tokens 65 tokens · stopped: STOP
It seems `ConfigSearchPath` also doesn't take `path` as a keyword argument. Let me check `hydra/_internal/config_search_path.py`.

It seems `ConfigSearchPath` also doesn't take `path` as a keyword argument. Let me check `hydra/_internal/config_search_path.py`. <channel|><|tool_call>call:read_file{filepath:<|"|>hydra/_internal/config_search_path.py<|"|>}<tool_call|><|tool_response>
Generated tokens 360 tokens · stopped: STOP
`ConfigSearchPath` has `append(provider, path, anchor=None)`.

Let me try the reproduction script again.

`ConfigSearchPath` has `append(provider, path, anchor=None)`. Let me try the reproduction script again. <channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY' import os from omegaconf import OmegaConf from hydra._internal.config_loader import ConfigLoader from hydra._internal.config_search_path import ConfigSearchPath # Mocking the environment os.makedirs("conf/lr", exist_ok=True) with open("conf/lr/0.1.yaml", "w") as f: f.write("val: 0.1") with open("conf/lr/0.01.yaml", "w") as f: f.write("val: 0.01") search_path = ConfigSearchPath() search_path.append("test", "conf") loader = ConfigLoader(config_file="config.yaml", strict_cfg=False, config_search_path=search_path) # Try to load lr=0.1 try: hydra_cfg = OmegaConf.create({"hydra": {"overrides": {"task": [], "hydra": []}}}) defaults = [OmegaConf.create({"lr": "0.1"})] print("Testing _merge_defaults with lr=0.1") loader._merge_defaults(hydra_cfg, defaults, split_at=0) print("Successfully loaded!") except Exception as e: import traceback traceback.print_exc() PY <|"|>}<tool_call|><|tool_response>

Patch, tests and logs

Final code change Included
diff --git a/conf/lr/0.01.yaml b/conf/lr/0.01.yaml
new file mode 100644
index 0000000..17f49ad
--- /dev/null
+++ b/conf/lr/0.01.yaml
@@ -0,0 +1 @@
+val: 0.01
\ No newline at end of file
diff --git a/conf/lr/0.1.yaml b/conf/lr/0.1.yaml
new file mode 100644
index 0000000..5cca061
--- /dev/null
+++ b/conf/lr/0.1.yaml
@@ -0,0 +1 @@
+val: 0.1
\ No newline at end of file
Test output Included
============================= test session starts ==============================
collected 50 items

tests/test_conf_loader.py ..........................FF.................. [ 92%]
....                                                                     [100%]

=================================== FAILURES ===================================
/hydra/hydra/_internal/config_loader.py:308: hydra.errors.MissingConfigException: Could not load group1/abc.cde, available options:
/hydra/hydra/_internal/config_loader.py:308: hydra.errors.MissingConfigException: Could not load group1/abc.cde, available options:
==================================== PASSES ====================================
- generated xml file: /tmp/rebench-grade-dbb5c08cfcb9496290319d3ea2648823.xml --
=========================== short test summary info ============================
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_configuration[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_configuration[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_with_missing_default[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_with_missing_default[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_with_missing_optional_default[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_with_missing_optional_default[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_with_optional_default[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_with_optional_default[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_changing_group_in_default[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_changing_group_in_default[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_adding_group_not_in_default[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_adding_group_not_in_default[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_change_run_dir_with_override[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_change_run_dir_with_override[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_change_run_dir_with_config[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_change_run_dir_with_config[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_strict[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_strict[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_history[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_history[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_history_with_basic_launcher[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_history_with_basic_launcher[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_yml_file[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_load_yml_file[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_override_with_equals[hydra/test_utils/configs]
PASSED tests/test_conf_loader.py::TestConfigLoader::test_override_with_equals[pkg://hydra.test_utils.configs]
PASSED tests/test_conf_loader.py::test_merge_default_lists[primary0-merged0-result0]
PASSED tests/test_conf_loader.py::test_merge_default_lists[primary1-merged1-result1]
PASSED tests/test_conf_loader.py::test_merge_default_lists[primary2-merged2-result2]
PASSED tests/test_conf_loader.py::test_merge_default_lists[primary3-merged3-result3]
PASSED tests/test_conf_loader.py::test_default_removal[removing-hydra-launcher-default.yaml-overrides0]
PASSED tests/test_conf_loader.py::test_default_removal[config.yaml-overrides1]
PASSED tests/test_conf_loader.py::test_default_removal[removing-hydra-launcher-default.yaml-overrides2]
PASSED tests/test_conf_loader.py::test_default_removal[config.yaml-overrides3]
PASSED tests/test_conf_loader.py::test_defaults_not_list_exception
PASSED tests/test_conf_loader.py::test_resource_exists[hydra.test_utils-]
PASSED tests/test_conf_loader.py::test_resource_exists[hydra.test_utils-__init__.py]
PASSED tests/test_conf_loader.py::test_resource_exists[hydra.test_utils-configs]
PASSED tests/test_conf_loader.py::test_resource_exists[hydra.test_utils-configs/config.yaml]
PASSED tests/test_conf_loader.py::test_resource_exists[hydra.test_utils.configs-]
PASSED tests/test_conf_loader.py::test_resource_exists[hydra.test_utils.configs-config.yaml]
PASSED tests/test_conf_loader.py::test_resource_exists[hydra.test_utils.configs-group1]
PASSED tests/test_conf_loader.py::test_resource_exists[hydra.test_utils.configs-group1/file1.yaml]
PASSED tests/test_conf_loader.py::test_override_hydra_config_value_from_config_file
PASSED tests/test_conf_loader.py::test_override_hydra_config_group_from_config_file
PASSED tests/test_conf_loader.py::test_list_groups
PASSED tests/test_conf_loader.py::test_non_config_group_default
PASSED tests/test_conf_loader.py::test_mixed_composition_order
FAILED tests/test_conf_loader.py::TestConfigLoader::test_compose_file_with_dot[hydra/test_utils/configs]
FAILED tests/test_conf_loader.py::TestConfigLoader::test_compose_file_with_dot[pkg://hydra.test_utils.configs]
========================= 2 failed, 48 passed in 1.12s =========================
Test errors Included
Test report (JUnit) Included
<?xml version="1.0" encoding="utf-8"?><testsuites><testsuite errors="0" failures="2" hostname="99c7e7cd0a98" name="pytest" skipped="0" tests="50" time="1.121" timestamp="2026-11-14T04:07:10.723225"><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_configuration[hydra/test_utils/configs]" time="0.030" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_configuration[pkg://hydra.test_utils.configs]" time="0.024" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_with_missing_default[hydra/test_utils/configs]" time="0.024" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_with_missing_default[pkg://hydra.test_utils.configs]" time="0.024" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_with_missing_optional_default[hydra/test_utils/configs]" time="0.024" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_with_missing_optional_default[pkg://hydra.test_utils.configs]" time="0.030" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_with_optional_default[hydra/test_utils/configs]" time="0.026" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_with_optional_default[pkg://hydra.test_utils.configs]" time="0.026" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_changing_group_in_default[hydra/test_utils/configs]" time="0.026" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_changing_group_in_default[pkg://hydra.test_utils.configs]" time="0.026" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_adding_group_not_in_default[hydra/test_utils/configs]" time="0.034" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_adding_group_not_in_default[pkg://hydra.test_utils.configs]" time="0.029" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_change_run_dir_with_override[hydra/test_utils/configs]" time="0.025" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_change_run_dir_with_override[pkg://hydra.test_utils.configs]" time="0.025" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_change_run_dir_with_config[hydra/test_utils/configs]" time="0.025" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_change_run_dir_with_config[pkg://hydra.test_utils.configs]" time="0.030" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_strict[hydra/test_utils/configs]" time="0.059" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_strict[pkg://hydra.test_utils.configs]" time="0.060" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_history[hydra/test_utils/configs]" time="0.031" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_history[pkg://hydra.test_utils.configs]" time="0.026" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_history_with_basic_launcher[hydra/test_utils/configs]" time="0.025" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_history_with_basic_launcher[pkg://hydra.test_utils.configs]" time="0.026" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_yml_file[hydra/test_utils/configs]" time="0.025" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_load_yml_file[pkg://hydra.test_utils.configs]" time="0.030" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_override_with_equals[hydra/test_utils/configs]" time="0.026" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_override_with_equals[pkg://hydra.test_utils.configs]" time="0.026" /><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_compose_file_with_dot[hydra/test_utils/configs]" time="0.027"><failure message="hydra.errors.MissingConfigException: Could not load group1/abc.cde, available options:&#10;group1:&#10;&#09;file2&#10;&#09;file1&#10;&#09;abc.cde">E   hydra.errors.MissingConfigException: Could not load group1/abc.cde, available options:
    group1:
    	file2
    	file1
    	abc.cde</failure></testcase><testcase classname="tests.test_conf_loader.TestConfigLoader" name="test_compose_file_with_dot[pkg://hydra.test_utils.configs]" time="0.027"><failure message="hydra.errors.MissingConfigException: Could not load group1/abc.cde, available options:&#10;group1:&#10;&#09;file2&#10;&#09;file1&#10;&#09;abc.cde">E   hydra.errors.MissingConfigException: Could not load group1/abc.cde, available options:
    group1:
    	file2
    	file1
    	abc.cde</failure></testcase><testcase classname="tests.test_conf_loader" name="test_merge_default_lists[primary0-merged0-result0]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_merge_default_lists[primary1-merged1-result1]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_merge_default_lists[primary2-merged2-result2]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_merge_default_lists[primary3-merged3-result3]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_default_removal[removing-hydra-launcher-default.yaml-overrides0]" time="0.029" /><testcase classname="tests.test_conf_loader" name="test_default_removal[config.yaml-overrides1]" time="0.023" /><testcase classname="tests.test_conf_loader" name="test_default_removal[removing-hydra-launcher-default.yaml-overrides2]" time="0.023" /><testcase classname="tests.test_conf_loader" name="test_default_removal[config.yaml-overrides3]" time="0.023" /><testcase classname="tests.test_conf_loader" name="test_defaults_not_list_exception" time="0.004" /><testcase classname="tests.test_conf_loader" name="test_resource_exists[hydra.test_utils-]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_resource_exists[hydra.test_utils-__init__.py]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_resource_exists[hydra.test_utils-configs]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_resource_exists[hydra.test_utils-configs/config.yaml]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_resource_exists[hydra.test_utils.configs-]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_resource_exists[hydra.test_utils.configs-config.yaml]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_resource_exists[hydra.test_utils.configs-group1]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_resource_exists[hydra.test_utils.configs-group1/file1.yaml]" time="0.000" /><testcase classname="tests.test_conf_loader" name="test_override_hydra_config_value_from_config_file" time="0.033" /><testcase classname="tests.test_conf_loader" name="test_override_hydra_config_group_from_config_file" time="0.021" /><testcase classname="tests.test_conf_loader" name="test_list_groups" time="0.001" /><testcase classname="tests.test_conf_loader" name="test_non_config_group_default" time="0.028" /><testcase classname="tests.test_conf_loader" name="test_mixed_composition_order" time="0.033" /></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 facebookresearch/hydra.
  [  25.9s] 💭 (1100 chars) "The user is reporting a bug in `hydra` where config files with a dot in their filename 
(e.g., `0.1.yaml`) are not being ..."
  [  25.9s] 🔧 run_command grep -rn --include="*.py" "MissingConfigException" hydra/_internal/config_loader
  [  25.9s]   → 18:from ..errors import MissingConfigException
  [  30.5s] 💭 (80 chars) "The traceback said line 301 in `_merge_config`. Let's see the code around there."
  [  30.5s] 📖 read_file (hydra/_internal/config_loader.py`,start_line:250,end_line:350)
  [  30.5s]   ❌ {'status': 'error', 'error_type': 'FileReadError', 'error_message': '404 Client Error for 
http+docker://localhost/v1.52/…
  [  44.1s] 💭 (531 chars) "Wait, I made a mistake in `read_file`? No, the error message is strange: `Could not find the
file /workspace/hydra/_inte..."
  [  44.1s] 📖 read_file (hydra/_internal/config_loader.py)
  [  44.1s]   ✓ {'status': 'ok', 'filepath': 'hydra/_internal/config_loader.py', 'content': '                    
"{}/{}".format(path, gr…
  [  59.2s] 💭 (310 chars) "The `_merge_config` method (lines 273-297) calls `self._load_config_impl(new_cfg)`.
If `loaded_cfg` is `None` and `requi..."
  [  59.2s] 🔧 run_command grep -rn "def _load_config_impl" hydra/_internal/config_loader.py
  [  59.2s]   → 201:    def _load_config_impl(self, input_file, record_load=True):
  [  64.4s] 💭 (31 chars) "Let's read `_load_config_impl`."
  [  64.4s] 📖 read_file (hydra/_internal/config_loader.py)
  [  64.4s]   ✓ {'status': 'ok', 'filepath': 'hydra/_internal/config_loader.py', 'content': '            key1 = 
next(keys_iter)\n       …
  [  68.0s] 💭 (88 chars) "`_load_config_impl` calls `self._find_config(input_file)`. Let's look at `_find_config`."
  [  68.0s] 🔧 run_command grep -rn "def _find_config" hydra/_internal/config_loader.py
  [  68.1s]   → 117:    def _find_config(self, filepath):
  [  72.9s] 💭 (26 chars) "Let's read `_find_config`."
  [  72.9s] 📖 read_file (hydra/_internal/config_loader.py)
  [  72.9s]   ✓ {'status': 'ok', 'filepath': 'hydra/_internal/config_loader.py', 'content': '    def _find_config(self, 
filepath):\n    …
  [  88.6s] 💭 (957 chars) "In `_find_config`:
```python
    def _find_config(self, filepath):
        found_search_path = None
        for search_p..."
  [  88.6s] 📖 read_file (hydra/_internal/config_loader.py)
  [  88.6s]   ✓ {'status': 'ok', 'filepath': 'hydra/_internal/config_loader.py', 'content': '\n        return 
module_name, resource_name…
  [  95.7s] 💭 (136 chars) "The `_exists` function seems incomplete in the `read_file` output (it's truncated or just 
ends there). Let's read the re..."
  [  95.7s] 📖 read_file (hydra/_internal/config_loader.py)
  [  95.7s]   ✓ {'status': 'ok', 'filepath': 'hydra/_internal/config_loader.py', 'content': '\n        return 
module_name, resource_name…
  [ 118.7s] 💭 (1034 chars) "In `_exists`:
```python
    @staticmethod
    def _exists(is_pkg, filename):
        if is_pkg:
            # ...
      ..."
  [ 118.7s] 📖 read_file (hydra/_internal/config_loader.py)
  [ 118.7s]   ✓ {'status': 'ok', 'filepath': 'hydra/_internal/config_loader.py', 'content': '        def 
merge_defaults(merged_cfg, def_…
  [ 211.9s] 💭 (4368 chars) "Yes, `get_filename(name)` is used when calling `_merge_config`:
```python
                        merged_cfg = self._mer..."
  [ 211.9s] ✅ Agent finished: call:run_command{command:<|"|>grep -rn "\.yaml" hydra/_internal/ | head -n 
20<|"|>}<tool_call|>
  [ 211.9s] 🎯 Task Prompt: Please continue your work using the available tools, or call submit_patch when you have 
completed and verified your chan...
  [ 370.0s] 💭 (4006 chars) "The user reported that when a YAML file has a dot in its base name (e.g., `0.1.yaml`), 
Hydra fails to load it, resulting..."
  [ 370.0s] 📝 write_file (/tmp/repro.py, 89 lines)
  [ 370.0s]   ❌ {'status': 'error', 'error_type': 'FileWriteError', 'error_message': "Path traversal detected: 
'/tmp/repro.py' escapes w…
  [ 395.5s] 💭 (527 chars) "Ah, right, I should write the reproduction file inside `/workspace` or run it inline. The 
instructions say: "Never leave..."
  [ 395.5s] 🔧 run_command (41 lines) python3 - <<'PY'
  [ 395.6s]   → error (exit 0): 
  [ 399.7s] 💭 (119 chars) "It seems `ConfigLoader.__init__` requires more arguments. Let me check 
`hydra/_internal/config_loader.py`'s `__init__`."
  [ 399.7s] 📖 read_file (hydra/_internal/config_loader.py)
  [ 399.7s]   ✓ {'status': 'ok', 'filepath': 'hydra/_internal/config_loader.py', 'content': '# Copyright (c) Facebook, 
Inc. and its affi…
  [ 422.4s] 💭 (444 chars) "Okay, `ConfigLoader.__init__` takes `config_file`, `strict_cfg`, and `config_search_path`.

```python
    def __init__(s..."
  [ 422.4s] 🔧 run_command (30 lines) python3 - <<'PY'
  [ 422.5s]   → error (exit 0): 
  [ 425.2s] 💭 (129 chars) "It seems `ConfigSearchPath` also doesn't take `path` as a keyword argument. Let me check 
`hydra/_internal/config_search_..."
  [ 425.2s] 📖 read_file (hydra/_internal/config_search_path.py)
  [ 425.2s]   ✓ {'status': 'ok', 'filepath': 'hydra/_internal/config_search_path.py', 'content': '# Copyright (c) 
Facebook, Inc. and its…
  [ 440.3s] 💭 (104 chars) "`ConfigSearchPath` has `append(provider, path, anchor=None)`.

Let me try the reproduction script again."
  [ 440.3s] 🔧 run_command (29 lines) python3 - <<'PY'
  [ 440.4s]   → Testing _merge_defaults with lr=0.1
Native result row
{
  "agent_error": "Agent exceeded session timeout (7.5 min)",
  "duration_seconds": 481.71,
  "error": "Test failures/errors recorded in JUnit XML (failures=2, errors=0)",
  "grade": {
    "collected_tests": 50,
    "competition_junit_ok": false,
    "error": "Test failures/errors recorded in JUnit XML (failures=2, errors=0)",
    "required_issues_count": 2,
    "resolved": false,
    "status_counts": {
      "FAILED": 2,
      "PASSED": 48
    },
    "strict_clean_patch": true,
    "test_exit_code": 1
  },
  "instance_id": "facebookresearch__hydra-273",
  "pass_idx": 0,
  "patch_chars": 368,
  "phase1_seconds": 479.96,
  "repo": "facebookresearch/hydra",
  "request_log_path": "/kaggle-root/working/r31/rollouts_X/requests/facebookresearch__hydra-273__p0__r5.jsonl",
  "resolved": false,
  "rollout_idx": 5,
  "run_key": "facebookresearch__hydra-273__p0__r5",
  "strict_clean_patch": true,
  "tool_calls": 16,
  "total_llm_calls": 17,
  "trace_path": "/kaggle-root/working/r31/rollouts_X/traces/trace_facebookresearch__hydra-273__p0__r5.json"
}