ROLLOUT 7 · scrapy/w3lib
scrapy__w3lib-202
Solved
180 stotal time
12tool calls
14model calls
2,073tokens generated
78,415prompt tokens read
No error recorded
⚠ The request log has 13 model calls but the trace has 15 agent calls, so tokens are listed separately instead of beside each turn.
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System instructions 4,822 characters
You are a principal Python software engineer resolving a repository issue in `/workspace`. Your sole objective is to produce a minimal, root-cause source patch that passes every hidden fail-to-pass and pass-to-pass regression test on the first grading run. ## Critical Environment & Grader Rules 1. **Air-Gapped Sandbox & Available CLI Tools**: No network access. Never run `pip`, `uv`, `conda`, or `git fetch`. Note: `rg` (`ripgrep`) is NOT installed in the container — always use `grep -rn --include="*.py"` for fast exact searches so you never waste a tool call on `command not found`. 2. **Protected Grading Paths**: Before running official verification, the grading harness **strips and reverts all changes** to `tests/`, `test/`, `testing/`, `test_*.py`, `*_test.py`, `conftest.py`, `pyproject.toml`, `setup.cfg`, `pytest.ini`, and `tox.ini`. Every part of your fix MUST reside in non-test production source files. 3. **Untracked File Trap (`git add -N .`)**: `submit_patch` stages ALL untracked files inside `/workspace`! Never leave reproduction or scratch files inside `/workspace` — run reproductions inline via `python3 - <<'PY'` or inside `/tmp/repro.py` in a single `run_command`. 4. **Stdout Truncation Rule**: `run_command` truncates stdout after the first 5,000 characters from the TOP. Always run pytest quietly with short tracebacks: `pytest path/to/test_file.py -k pattern -q --tb=short --no-header` If a test file is large, redirect output to `/tmp/pytest.log` and inspect `tail -n 80 /tmp/pytest.log` so failure tracebacks at the bottom are never cut off. 5. **Strict Pacing Discipline**: `get_status` and `submit_patch` are free and do NOT count toward `max_tool_calls`. Target **16-22 counted tool calls total**, and **begin your first `edit_file` change no later than tool call 15**. Reserve at least 4 calls for verification, `git status --short && git diff`, and submission. ## Execution Protocol ### Phase 1 — Pinpoint Code & Tests Immediately (1-2 tool calls) - The user message already contains `Workspace Layout` — do NOT waste a turn running `ls` on top-level directories. - Run a single compound `run_command` with `grep -rn --include="*.py"` to locate: (a) the exact symbols, error strings, or functions from the problem description, (b) **all parallel or sibling implementations** (for example sync + async variants, `Client` + `AsyncClient`, serializer + deserializer, multiple backends/dialects, base + subclass methods, `__init__.py` / `__all__` exports), and (c) the closest existing unit test files under `tests/`. ### Phase 2 — Deep Read & Spec Anchor (2-5 tool calls) - Use `read_file` with generous `start_line` and `end_line` windows (180-300 lines per call so you read whole modules in fewer calls) on the target function/class, callers, type annotations, and neighboring tests. - Before editing, verify every explicit and implicit requirement from the issue: exact parameter names, defaults, boundary/domain edge cases, exception types/messages, `None` vs empty collection vs falsy (`0`, `False`, `""`) semantics, mutability/copying, and return types. ### Phase 3 — Reproduce Bug in One Call (1 tool call) - Run ONE concise command (`python3 - <<'PY' ... PY` or targeted `pytest ... -q --tb=short --no-header`) via `run_command` to observe the exact pre-fix failure. Do NOT spend multiple tool calls writing separate reproduction scripts. ### Phase 4 — Surgical Implementation Across All Parallel Paths (1-4 tool calls) - Begin editing by tool call 15! Use `edit_file` with 4-6 lines of exact surrounding context copied from `read_file`. - Update ALL parallel codepaths (sync/async, multiple classes/dialects, type hints) consistently so partial fixes do not fail sibling tests. - **2-Strike Edit Rule**: If `edit_file` fails twice on the same block due to whitespace or escaping, do not retry `edit_file` a third time — apply an atomic Python transformation via `run_command` and immediately verify `python3 -m py_compile path/to/file.py`. ### Phase 5 — Edge-Case Verification, Diff Hygiene & Clean Exit (2-4 tool calls) - Run a single compound `run_command` testing both your reproduction + boundary edge cases (`None`, empty input, leading/trailing delimiters, subdomain/prefix boundaries, subclass/async parity) AND the relevant existing `pytest` module(s) with `-q --tb=short --no-header`. - Run `git status --short && git diff` via `run_command`. Confirm: - ZERO untracked (`??`) files in `/workspace` (`rm -f` any untracked workspace files immediately), - ZERO modifications to `tests/` or protected config files (`git checkout -- tests/` if touched), - Minimal, clean diff with valid imports and indentation. - Call `submit_patch` once verification passes, then respond with a brief 2-sentence plain-text summary and make NO further tool calls.
Task prompt 2,221 characters
You are evaluating a software engineering task for repository scrapy/w3lib. Problem Statement: Function `convert_entity` does not catch `OverflowError` Error: ``` OverflowError Python int too large to convert to C int ``` `w3lib` version -> `2.0.1` `Python` version -> `3.8.13` <img width="1131" alt="Screenshot 2022-10-31 at 10 02 22" src="https://user-images.githubusercontent.com/107861298/198971171-1af35f01-42d2-413a-8c47-9d2c3dc6ece1.png"> ## 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): ``` ./LICENSE ./MANIFEST.in ./NEWS ./README.rst ./codecov.yml ./conftest.py ./docs ./mypy.ini ./pylintrc ./pytest.ini ./setup.py ./tests ./tox.ini ./w3lib ./w3lib/__init__.py ./w3lib/_types.py ./w3lib/encoding.py ./w3lib/html.py ./w3lib/http.py ./w3lib/py.typed ./w3lib/url.py ./w3lib/util.py ```
Turn 1at 8.5 s111 tokens out2,705 prompt tokens
The user is reporting an `OverflowError: Python int too large to convert to C int` in the `convert_entity` function of `w3lib`. I need to find where `convert_entity` is defined, reproduce the error, and fix it by catching `OverflowError`. First, I'll search for `convert_entity` in the codebase.
TOOL CALL · run_command
{
"command": "grep -rn --include=\"*.py\" \"def convert_entity\" ."
}Result of run_command 121 characters
{
"status": "ok",
"stdout": "./w3lib/html.py:69: def convert_entity(m: Match) -> str:\n",
"stderr": "",
"exit_code": 0
}Turn 2at 15 s106 tokens out2,880 prompt tokens
Okay, `convert_entity` is defined in `w3lib/html.py` on line 69. It seems it is a method inside a class or a nested function (since it takes `m: Match`). Let me read the code in `w3lib/html.py` around line 69.
TOOL CALL · read_file
{
"end_line": 120,
"filepath": "w3lib/html.py",
"start_line": 50
}Result of read_file 2,904 characters
{
"status": "ok",
"filepath": "w3lib/html.py",
"content": "\n It supports both numeric entities (``&#nnnn;`` and ``&#hhhh;``)\n and named entities (such as `` `` or ``>``).\n\n If `remove_illegal` is ``True``, entities that can't be converted are removed.\n If `remove_illegal` is ``False``, entities that can't be converted are kept \"as\n is\". For more information see the tests.\n\n Always returns a unicode string (with the entities removed).\n\n >>> import w3lib.html\n >>> w3lib.html.replace_entities(b'Price: £100')\n 'Price: \\\\xa3100'\n >>> print(w3lib.html.replace_entities(b'Price: £100'))\n Price: £100\n >>>\n\n \"\"\"\n\n def convert_entity(m: Match) -> str:\n groups = m.groupdict()\n number = None\n if groups.get(\"dec\"):\n number = int(groups[\"dec\"], 10)\n elif groups.get(\"hex\"):\n number = int(groups[\"hex\"], 16)\n elif groups.get(\"named\"):\n entity_name = groups[\"named\"]\n if entity_name.lower() in keep:\n return m.group(0)\n else:\n number = name2codepoint.get(entity_name) or name2codepoint.get(\n entity_name.lower()\n )\n if number is not None:\n # Numeric character references in the 80-9F range are typically\n # interpreted by browsers as representing the characters mapped\n # to bytes 80-9F in the Windows-1252 encoding. For more info\n # see: http://en.wikipedia.org/wiki/Character_encodings_in_HTML\n try:\n if 0x80 <= number <= 0x9F:\n return bytes((number,)).decode(\"cp1252\")\n else:\n return chr(number)\n except ValueError:\n pass\n\n return \"\" if remove_illegal and groups.get(\"semicolon\") else m.group(0)\n\n return _ent_re.sub(convert_entity, to_unicode(text, encoding))\n\n\ndef has_entities(text: AnyStr, encoding: Optional[str] = None) -> bool:\n return bool(_ent_re.search(to_unicode(text, encoding)))\n\n\ndef replace_tags(text: AnyStr, token: str = \"\", encoding: Optional[str] = None) -> str:\n \"\"\"Replace all markup tags found in the given `text` by the given token.\n By default `token` is an empty string so it just removes all tags.\n\n `text` can be a unicode string or a regular string encoded as `encoding`\n (or ``'utf-8'`` if `encoding` is not given.)\n\n Always returns a unicode string.\n\n Examples:\n\n >>> import w3lib.html\n >>> w3lib.html.replace_tags('This text contains <a>some tag</a>')\n 'This text contains some tag'\n >>> w3lib.html.replace_tags('<p>Je ne parle pas <b>fran\\\\xe7ais</b></p>', ' -- ', 'latin-1')",
"start_line": 50,
"end_line": 120,
"total_lines": 369,
"is_truncated": false
}Turn 3at 58 s450 tokens out3,900 prompt tokens
The `convert_entity` function is nested inside another function (which based on the docstring is `replace_entities`).
The problematic part seems to be:
```python
try:
if 0x80 <= number <= 0x9F:
return bytes((number,)).decode("cp1252")
else:
return chr(number)
except ValueError:
pass
```
If `number` is very large, `chr(number)` might raise `ValueError` (if it's beyond the maximum unicode character), which is already caught. However, if `number` is so large that it exceeds the maximum C long for certain operations, it might raise `OverflowError`.
Wait, the error reported is `OverflowError: Python int too large to convert to C int`. This often happens when passing a huge integer to a function that expects a C integer, like `chr()` on some platforms or other built-in functions. In Python 3, `chr()` should handle any valid unicode code point (up to 0x10FFFF). If `number` is larger than that, it raises `ValueError`.
But `OverflowError` can happen if `number` is ridiculously large, even before `ValueError` is raised, or in `bytes((number,))`. Let's check.
Wait, `bytes((number,))` will raise `ValueError` if `number` is not in range(0, 256). Since we check `0x80 <= number <= 0x9F`, it's safe.
The issue is likely `chr(number)` when `number` is extremely large.
Let me try to reproduce it. I'll create a reproduction script.
I need to know how to call `replace_entities`.
Looking at the code, `replace_entities` is defined before `convert_entity`. Let me read the beginning of `replace_entities`.
TOOL CALL · read_file
{
"end_line": 68,
"filepath": "w3lib/html.py",
"start_line": 30
}Result of read_file 1,413 characters
{
"status": "ok",
"filepath": "w3lib/html.py",
"content": " r\"((?P<cdata_s><!\\[CDATA\\[)(?P<cdata_d>.*?)(?P<cdata_e>\\]\\]>))\", re.DOTALL\n)\n\nHTML5_WHITESPACE = \" \\t\\n\\r\\x0c\"\n\n\ndef replace_entities(\n text: AnyStr,\n keep: Iterable[str] = (),\n remove_illegal: bool = True,\n encoding: str = \"utf-8\",\n) -> str:\n \"\"\"Remove entities from the given `text` by converting them to their\n corresponding unicode character.\n\n `text` can be a unicode string or a byte string encoded in the given\n `encoding` (which defaults to 'utf-8').\n\n If `keep` is passed (with a list of entity names) those entities will\n be kept (they won't be removed).\n\n It supports both numeric entities (``&#nnnn;`` and ``&#hhhh;``)\n and named entities (such as `` `` or ``>``).\n\n If `remove_illegal` is ``True``, entities that can't be converted are removed.\n If `remove_illegal` is ``False``, entities that can't be converted are kept \"as\n is\". For more information see the tests.\n\n Always returns a unicode string (with the entities removed).\n\n >>> import w3lib.html\n >>> w3lib.html.replace_entities(b'Price: £100')\n 'Price: \\\\xa3100'\n >>> print(w3lib.html.replace_entities(b'Price: £100'))\n Price: £100\n >>>\n\n \"\"\"\n",
"start_line": 30,
"end_line": 68,
"total_lines": 369,
"is_truncated": false
}Turn 4at 71 s156 tokens out4,859 prompt tokens
Okay, `replace_entities` is the function. I can call it with a string containing a very large numeric entity like `�`. Let's try to reproduce.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport w3lib.html\ntry:\n print(w3lib.html.replace_entities(\"�\"))\nexcept Exception as e:\n print(f\"Caught exception: {type(e).__name__}: {e}\")\nPY\n"
}Result of run_command 135 characters
{
"status": "ok",
"stdout": "Caught exception: OverflowError: Python int too large to convert to C int\n",
"stderr": "",
"exit_code": 0
}Turn 5at 89 s272 tokens out5,070 prompt tokens
Yup, reproduced. `OverflowError: Python int too large to convert to C int`.
Now I need to fix it by catching `OverflowError` in `convert_entity`.
Looking back at the code:
```python
try:
if 0x80 <= number <= 0x9F:
return bytes((number,)).decode("cp1252")
else:
return chr(number)
except ValueError:
pass
```
I should change it to:
```python
try:
if 0x80 <= number <= 0x9F:
return bytes((number,)).decode("cp1252")
else:
return chr(number)
except (ValueError, OverflowError):
pass
```
Let me double check if there are other places where this might happen or other parallel paths.
The `convert_entity` is a closure inside `replace_entities`.
Are there any other functions that do similar entity conversion?
I'll grep for `chr(` in `w3lib/html.py`.
TOOL CALL · run_command
{
"command": "grep -rn \"chr(\" w3lib/html.py"
}Result of run_command 103 characters
{
"status": "ok",
"stdout": "93: return chr(number)\n",
"stderr": "",
"exit_code": 0
}Turn 6at 93 s68 tokens out5,390 prompt tokens
Only one place. Now I'll apply the fix.
TOOL CALL · edit_file
{
"filepath": "w3lib/html.py",
"new_string": " except (ValueError, OverflowError):\n pass",
"old_string": " except ValueError:\n pass"
}Result of edit_file 505 characters
{
"status": "ok",
"filepath": "w3lib/html.py",
"occurrences": 1,
"strategy": "exact",
"diff": "--- a/w3lib/html.py\n+++ b/w3lib/html.py\n@@ -91,7 +91,7 @@\n return bytes((number,)).decode(\"cp1252\")\n else:\n return chr(number)\n- except ValueError:\n+ except (ValueError, OverflowError):\n pass\n \n return \"\" if remove_illegal and groups.get(\"semicolon\") else m.group(0)\n",
"is_truncated": false
}Turn 7at 101 s144 tokens out5,631 prompt tokens
Now I'll verify the fix with the reproduction script and check if there are any existing tests for `replace_entities` that I should run. First, the reproduction script.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport w3lib.html\ntry:\n print(f\"Result: {repr(w3lib.html.replace_entities('�'))}\")\nexcept Exception as e:\n print(f\"Caught exception: {type(e).__name__}: {e}\")\nPY\n"
}Result of run_command 72 characters
{
"status": "ok",
"stdout": "Result: ''\n",
"stderr": "",
"exit_code": 0
}Turn 8at 117 s187 tokens out5,818 prompt tokens
The result is `''` because `remove_illegal` is `True` by default, and `groups.get("semicolon")` is probably True for `�`.
Let's check what happens when `remove_illegal` is `False`.
TOOL CALL · run_command
{
"command": "python3 - <<'PY'\nimport w3lib.html\ntry:\n print(f\"Result: {repr(w3lib.html.replace_entities('�', remove_illegal=False))}\")\nexcept Exception as e:\n print(f\"Caught exception: {type(e).__name__}: {e}\")\nPY\n"
}Result of run_command 95 characters
{
"status": "ok",
"stdout": "Result: '�'\n",
"stderr": "",
"exit_code": 0
}Turn 9at 120 s51 tokens out6,070 prompt tokens
Correct. It returns the original string if `remove_illegal=False`. Now let's find relevant existing tests.
TOOL CALL · run_command
{
"command": "grep -rn \"replace_entities\" tests/"
}Result of run_command 1,815 characters
{
"status": "ok",
"stdout": "tests/test_html.py:9: replace_entities,\ntests/test_html.py:19: assert isinstance(replace_entities(b\"no entities\"), str)\ntests/test_html.py:20: assert isinstance(replace_entities(b\"Price: £100!\"), str)\ntests/test_html.py:21: assert isinstance(replace_entities(\"no entities\"), str)\ntests/test_html.py:22: assert isinstance(replace_entities(\"Price: £100!\"), str)\ntests/test_html.py:26: self.assertEqual(replace_entities(\"As low as £100!\"), \"As low as \\xa3100!\")\ntests/test_html.py:28: replace_entities(b\"As low as £100!\"), \"As low as \\xa3100!\"\ntests/test_html.py:31: replace_entities(\ntests/test_html.py:40: replace_entities(\ntests/test_html.py:46: replace_entities(\ntests/test_html.py:54: replace_entities(\ntests/test_html.py:60: replace_entities(\ntests/test_html.py:65: self.assertEqual(replace_entities(\"x≤y\"), \"x\\u2264y\")\ntests/test_html.py:66: self.assertEqual(replace_entities(\"xy\"), \"xy\")\ntests/test_html.py:67: self.assertEqual(replace_entities(\"xy\", remove_illegal=False), \"xy\")\ntests/test_html.py:71: self.assertEqual(replace_entities(\"x™y\", encoding=\"cp1252\"), \"x\\u2122y\")\ntests/test_html.py:72: self.assertEqual(replace_entities(\"x™y\", encoding=\"cp1252\"), \"x\\u2122y\")\ntests/test_html.py:89: self.assertEqual(replace_entities(entity, encoding=\"cp1252\"), result)\ntests/test_html.py:91: replace_entities(f\"x{entity}y\", encoding=\"cp1252\"), f\"x{result}y\"\ntests/test_html.py:96: replace_entities(b\"x\\x99™™y\", encoding=\"cp1252\"),\n",
"stderr": "",
"exit_code": 0
}Turn 10at 127 s57 tokens out6,819 prompt tokens
I'll run `tests/test_html.py` to make sure I haven't broken anything.
TOOL CALL · run_command
{
"command": "pytest tests/test_html.py -q --tb=short --no-header"
}Result of run_command 161 characters
{
"status": "ok",
"stdout": "....................................................... [100%]\n55 passed in 0.06s\n",
"stderr": "",
"exit_code": 0
}Turn 11at 154 s250 tokens out6,938 prompt tokens
The tests passed. Now I should double check if there are any other places in `w3lib/html.py` that might be susceptible to this. The problem statement specifically mentioned `convert_entity`. I checked `chr()` and it was only in `convert_entity`. Is there anything else that can cause `OverflowError` with large integers? The `int(groups["dec"], 10)` and `int(groups["hex"], 16)` can theoretically produce very large integers, but Python handles arbitrary precision integers, so they won't raise `OverflowError` there. The `OverflowError` happens when that large integer is passed to a function that expects a C integer, such as `chr()` or `bytes()`. As I noted, `bytes((number,))` is only called when `0x80 <= number <= 0x9F`, so it's safe. Wait, I should check if there are other functions in `w3lib` that might have similar patterns. Searching for `chr(` in the whole repository.
TOOL CALL · run_command
{
"command": "grep -rn \"chr(\" ."
}Result of run_command 119 characters
{
"status": "ok",
"stdout": "./w3lib/html.py:93: return chr(number)\n",
"stderr": "",
"exit_code": 0
}Turn 12at 159 s57 tokens out7,244 prompt tokens
Only in `w3lib/html.py`. I'm confident in the fix. One last check: `git status --short && git diff`.
TOOL CALL · run_command
{
"command": "git status --short && git diff"
}Result of run_command 561 characters
{
"status": "ok",
"stdout": " M w3lib/html.py\ndiff --git a/w3lib/html.py b/w3lib/html.py\nindex a31d42b..0cff2ff 100644\n--- a/w3lib/html.py\n+++ b/w3lib/html.py\n@@ -91,7 +91,7 @@ def replace_entities(\n return bytes((number,)).decode(\"cp1252\")\n else:\n return chr(number)\n- except ValueError:\n+ except (ValueError, OverflowError):\n pass\n \n return \"\" if remove_illegal and groups.get(\"semicolon\") else m.group(0)\n",
"stderr": "",
"exit_code": 0
}Turn 13at 163 s24 tokens out7,514 prompt tokens
The diff looks correct. I'm ready to submit.
TOOL CALL · submit_patch
Result of submit_patch 55 characters
{
"status": "ok",
"patch_size": 464,
"files_changed": 1
}Turn 14at 176 s140 tokens out7,577 prompt tokens
The task is complete. I've reproduced the `OverflowError`, fixed it by adding `OverflowError` to the caught exceptions in `convert_entity`, verified the fix with a reproduction script, and ensured existing tests still pass.
Turn 15at 176 s
The `convert_entity` helper function in `w3lib.html.replace_entities` was catching `ValueError` but not `OverflowError`, which occurs when `chr()` is called with an integer too large to be converted to a C integer. I updated the `try...except` block to catch both `ValueError` and `OverflowError`, ensuring that extremely large numeric entities are handled safely according to the `remove_illegal` flag.
Model calls (not matched to turns)
Generated tokens 111 tokens · stopped: STOP
The user is reporting an `OverflowError: Python int too large to convert to C int` in the `convert_entity` function of `w3lib`. I need to find where `convert_entity` is defined, reproduce the error, and fix it by catching `OverflowError`. First, I'll search for `convert_entity` in the codebase.
<|channel>thought
The user is reporting an `OverflowError: Python int too large to convert to C int` in the `convert_entity` function of `w3lib`.
I need to find where `convert_entity` is defined, reproduce the error, and fix it by catching `OverflowError`.
First, I'll search for `convert_entity` in the codebase.<channel|><|tool_call>call:run_command{command:<|"|>grep -rn --include="*.py" "def convert_entity" .<|"|>}<tool_call|><|tool_response>
Generated tokens 106 tokens · stopped: STOP
Okay, `convert_entity` is defined in `w3lib/html.py` on line 69. It seems it is a method inside a class or a nested function (since it takes `m: Match`). Let me read the code in `w3lib/html.py` around line 69.
Okay, `convert_entity` is defined in `w3lib/html.py` on line 69. It seems it is a method inside a class or a nested function (since it takes `m: Match`).
Let me read the code in `w3lib/html.py` around line 69.<channel|><|tool_call>call:read_file{end_line:120,filepath:<|"|>w3lib/html.py<|"|>,start_line:50}<tool_call|><|tool_response>
Generated tokens 450 tokens · stopped: STOP
The `convert_entity` function is nested inside another function (which based on the docstring is `replace_entities`).
The problematic part seems to be:
```python
try:
if 0x80 <= number <= 0x9F:
return bytes((number,)).decode("cp1252")
else:
return chr(number)
except ValueError:
pass
```
If `number` is very large, `chr(number)` might raise `ValueError` (if it's beyond the maximum unicode character), which is already caught. However, if `number` is so large that it exceeds the maximum C long for certain operations, it might raise `OverflowError`.
Wait, the error reported is `OverflowError: Python int too large to convert to C int`. This often happens when passing a huge integer to a function that expects a C integer, like `chr()` on some platforms or other built-in functions. In Python 3, `chr()` should handle any valid unicode code point (up to 0x10FFFF). If `number` is larger than that, it raises `ValueError`.
But `OverflowError` can happen if `number` is ridiculously large, even before `ValueError` is raised, or in `bytes((number,))`. Let's check.
Wait, `bytes((number,))` will raise `ValueError` if `number` is not in range(0, 256). Since we check `0x80 <= number <= 0x9F`, it's safe.
The issue is likely `chr(number)` when `number` is extremely large.
Let me try to reproduce it. I'll create a reproduction script.
I need to know how to call `replace_entities`.
Looking at the code, `replace_entities` is defined before `convert_entity`. Let me read the beginning of `replace_entities`.
The `convert_entity` function is nested inside another function (which based on the docstring is `replace_entities`).
The problematic part seems to be:
```python
try:
if 0x80 <= number <= 0x9F:
return bytes((number,)).decode("cp1252")
else:
return chr(number)
except ValueError:
pass
```
If `number` is very large, `chr(number)` might raise `ValueError` (if it's beyond the maximum unicode character), which is already caught. However, if `number` is so large that it exceeds the maximum C long for certain operations, it might raise `OverflowError`.
Wait, the error reported is `OverflowError: Python int too large to convert to C int`. This often happens when passing a huge integer to a function that expects a C integer, like `chr()` on some platforms or other built-in functions. In Python 3, `chr()` should handle any valid unicode code point (up to 0x10FFFF). If `number` is larger than that, it raises `ValueError`.
But `OverflowError` can happen if `number` is ridiculously large, even before `ValueError` is raised, or in `bytes((number,))`. Let's check.
Wait, `bytes((number,))` will raise `ValueError` if `number` is not in range(0, 256). Since we check `0x80 <= number <= 0x9F`, it's safe.
The issue is likely `chr(number)` when `number` is extremely large.
Let me try to reproduce it. I'll create a reproduction script.
I need to know how to call `replace_entities`.
Looking at the code, `replace_entities` is defined before `convert_entity`. Let me read the beginning of `replace_entities`.
<channel|><|tool_call>call:read_file{end_line:68,filepath:<|"|>w3lib/html.py<|"|>,start_line:30}<tool_call|><|tool_response>
Generated tokens 156 tokens · stopped: STOP
Okay, `replace_entities` is the function. I can call it with a string containing a very large numeric entity like `�`. Let's try to reproduce.
Okay, `replace_entities` is the function. I can call it with a string containing a very large numeric entity like `�`.
Let's try to reproduce.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import w3lib.html
try:
print(w3lib.html.replace_entities("�"))
except Exception as e:
print(f"Caught exception: {type(e).__name__}: {e}")
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 272 tokens · stopped: STOP
Yup, reproduced. `OverflowError: Python int too large to convert to C int`.
Now I need to fix it by catching `OverflowError` in `convert_entity`.
Looking back at the code:
```python
try:
if 0x80 <= number <= 0x9F:
return bytes((number,)).decode("cp1252")
else:
return chr(number)
except ValueError:
pass
```
I should change it to:
```python
try:
if 0x80 <= number <= 0x9F:
return bytes((number,)).decode("cp1252")
else:
return chr(number)
except (ValueError, OverflowError):
pass
```
Let me double check if there are other places where this might happen or other parallel paths.
The `convert_entity` is a closure inside `replace_entities`.
Are there any other functions that do similar entity conversion?
I'll grep for `chr(` in `w3lib/html.py`.
Yup, reproduced. `OverflowError: Python int too large to convert to C int`.
Now I need to fix it by catching `OverflowError` in `convert_entity`.
Looking back at the code:
```python
try:
if 0x80 <= number <= 0x9F:
return bytes((number,)).decode("cp1252")
else:
return chr(number)
except ValueError:
pass
```
I should change it to:
```python
try:
if 0x80 <= number <= 0x9F:
return bytes((number,)).decode("cp1252")
else:
return chr(number)
except (ValueError, OverflowError):
pass
```
Let me double check if there are other places where this might happen or other parallel paths.
The `convert_entity` is a closure inside `replace_entities`.
Are there any other functions that do similar entity conversion?
I'll grep for `chr(` in `w3lib/html.py`.
<channel|><|tool_call>call:run_command{command:<|"|>grep -rn "chr(" w3lib/html.py<|"|>}<tool_call|><|tool_response>
Generated tokens 68 tokens · stopped: STOP
Only one place. Now I'll apply the fix.
Only one place.
Now I'll apply the fix.
<channel|><|tool_call>call:edit_file{filepath:<|"|>w3lib/html.py<|"|>,new_string:<|"|> except (ValueError, OverflowError):
pass<|"|>,old_string:<|"|> except ValueError:
pass<|"|>}<tool_call|><|tool_response>
Generated tokens 144 tokens · stopped: STOP
Now I'll verify the fix with the reproduction script and check if there are any existing tests for `replace_entities` that I should run. First, the reproduction script.
Now I'll verify the fix with the reproduction script and check if there are any existing tests for `replace_entities` that I should run.
First, the reproduction script.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import w3lib.html
try:
print(f"Result: {repr(w3lib.html.replace_entities('�'))}")
except Exception as e:
print(f"Caught exception: {type(e).__name__}: {e}")
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 187 tokens · stopped: STOP
The result is `''` because `remove_illegal` is `True` by default, and `groups.get("semicolon")` is probably True for `�`.
Let's check what happens when `remove_illegal` is `False`.
The result is `''` because `remove_illegal` is `True` by default, and `groups.get("semicolon")` is probably True for `�`.
Let's check what happens when `remove_illegal` is `False`.
<channel|><|tool_call>call:run_command{command:<|"|>python3 - <<'PY'
import w3lib.html
try:
print(f"Result: {repr(w3lib.html.replace_entities('�', remove_illegal=False))}")
except Exception as e:
print(f"Caught exception: {type(e).__name__}: {e}")
PY
<|"|>}<tool_call|><|tool_response>
Generated tokens 51 tokens · stopped: STOP
Correct. It returns the original string if `remove_illegal=False`. Now let's find relevant existing tests.
Correct. It returns the original string if `remove_illegal=False`.
Now let's find relevant existing tests.
<channel|><|tool_call>call:run_command{command:<|"|>grep -rn "replace_entities" tests/<|"|>}<tool_call|><|tool_response>
Generated tokens 57 tokens · stopped: STOP
I'll run `tests/test_html.py` to make sure I haven't broken anything.
I'll run `tests/test_html.py` to make sure I haven't broken anything.
<channel|><|tool_call>call:run_command{command:<|"|>pytest tests/test_html.py -q --tb=short --no-header<|"|>}<tool_call|><|tool_response>
Generated tokens 250 tokens · stopped: STOP
The tests passed. Now I should double check if there are any other places in `w3lib/html.py` that might be susceptible to this. The problem statement specifically mentioned `convert_entity`. I checked `chr()` and it was only in `convert_entity`. Is there anything else that can cause `OverflowError` with large integers? The `int(groups["dec"], 10)` and `int(groups["hex"], 16)` can theoretically produce very large integers, but Python handles arbitrary precision integers, so they won't raise `OverflowError` there. The `OverflowError` happens when that large integer is passed to a function that expects a C integer, such as `chr()` or `bytes()`. As I noted, `bytes((number,))` is only called when `0x80 <= number <= 0x9F`, so it's safe. Wait, I should check if there are other functions in `w3lib` that might have similar patterns. Searching for `chr(` in the whole repository.
The tests passed.
Now I should double check if there are any other places in `w3lib/html.py` that might be susceptible to this.
The problem statement specifically mentioned `convert_entity`.
I checked `chr()` and it was only in `convert_entity`.
Is there anything else that can cause `OverflowError` with large integers?
The `int(groups["dec"], 10)` and `int(groups["hex"], 16)` can theoretically produce very large integers, but Python handles arbitrary precision integers, so they won't raise `OverflowError` there. The `OverflowError` happens when that large integer is passed to a function that expects a C integer, such as `chr()` or `bytes()`.
As I noted, `bytes((number,))` is only called when `0x80 <= number <= 0x9F`, so it's safe.
Wait, I should check if there are other functions in `w3lib` that might have similar patterns.
Searching for `chr(` in the whole repository.
<channel|><|tool_call>call:run_command{command:<|"|>grep -rn "chr(" .<|"|>}<tool_call|><|tool_response>
Generated tokens 57 tokens · stopped: STOP
Only in `w3lib/html.py`. I'm confident in the fix. One last check: `git status --short && git diff`.
Only in `w3lib/html.py`.
I'm confident in the fix.
One last check: `git status --short && git diff`.
<channel|><|tool_call>call:run_command{command:<|"|>git status --short && git diff<|"|>}<tool_call|><|tool_response>
Generated tokens 24 tokens · stopped: STOP
The diff looks correct. I'm ready to submit.
The diff looks correct.
I'm ready to submit.
<channel|><|tool_call>call:submit_patch{}<tool_call|><|tool_response>
Patch, tests and logs
Final code change Included
diff --git a/w3lib/html.py b/w3lib/html.py
index a31d42b..0cff2ff 100644
--- a/w3lib/html.py
+++ b/w3lib/html.py
@@ -91,7 +91,7 @@ def replace_entities(
return bytes((number,)).decode("cp1252")
else:
return chr(number)
- except ValueError:
+ except (ValueError, OverflowError):
pass
return "" if remove_illegal and groups.get("semicolon") else m.group(0)
Test output Included
============================= test session starts ============================== collected 158 items tests/test_encoding.py ................... [ 12%] tests/test_html.py ..................................................... [ 45%] .. [ 46%] tests/test_http.py ....... [ 51%] tests/test_url.py .x.................................................... [ 85%] .................. [ 96%] tests/test_util.py ..... [100%] ==================================== PASSES ==================================== - generated xml file: /tmp/rebench-grade-fe9a68836c724efcab226ddd14ec3532.xml -- =========================== short test summary info ============================ PASSED tests/test_encoding.py::RequestEncodingTests::test_bom PASSED tests/test_encoding.py::RequestEncodingTests::test_html_body_declared_encoding PASSED tests/test_encoding.py::RequestEncodingTests::test_html_body_declared_encoding_unicode PASSED tests/test_encoding.py::RequestEncodingTests::test_http_encoding_header PASSED tests/test_encoding.py::CodecsEncodingTestCase::test_resolve_encoding PASSED tests/test_encoding.py::UnicodeDecodingTestCase::test_invalid_utf8 PASSED tests/test_encoding.py::UnicodeDecodingTestCase::test_utf8 PASSED tests/test_encoding.py::HtmlConversionTests::test_BOM PASSED tests/test_encoding.py::HtmlConversionTests::test_autodetect PASSED tests/test_encoding.py::HtmlConversionTests::test_content_type_and_conversion PASSED tests/test_encoding.py::HtmlConversionTests::test_default_encoding PASSED tests/test_encoding.py::HtmlConversionTests::test_empty_body PASSED tests/test_encoding.py::HtmlConversionTests::test_html_encoding PASSED tests/test_encoding.py::HtmlConversionTests::test_invalid_utf8_encoded_body_with_valid_utf8_BOM PASSED tests/test_encoding.py::HtmlConversionTests::test_python_crash PASSED tests/test_encoding.py::HtmlConversionTests::test_replace_wrong_encoding PASSED tests/test_encoding.py::HtmlConversionTests::test_unicode_body PASSED tests/test_encoding.py::HtmlConversionTests::test_utf16_32 PASSED tests/test_encoding.py::HtmlConversionTests::test_utf8_unexpected_end_of_data_with_valid_utf8_BOM PASSED tests/test_html.py::RemoveEntitiesTest::test_browser_hack PASSED tests/test_html.py::RemoveEntitiesTest::test_encoding PASSED tests/test_html.py::RemoveEntitiesTest::test_illegal_entities PASSED tests/test_html.py::RemoveEntitiesTest::test_keep_entities PASSED tests/test_html.py::RemoveEntitiesTest::test_missing_semicolon PASSED tests/test_html.py::RemoveEntitiesTest::test_regular PASSED tests/test_html.py::RemoveEntitiesTest::test_returns_unicode PASSED tests/test_html.py::ReplaceTagsTest::test_replace_tags PASSED tests/test_html.py::ReplaceTagsTest::test_replace_tags_multiline PASSED tests/test_html.py::ReplaceTagsTest::test_returns_unicode PASSED tests/test_html.py::RemoveCommentsTest::test_no_comments PASSED tests/test_html.py::RemoveCommentsTest::test_remove_comments PASSED tests/test_html.py::RemoveCommentsTest::test_returns_unicode PASSED tests/test_html.py::RemoveTagsTest::test_keep_argument PASSED tests/test_html.py::RemoveTagsTest::test_remove_empty_tags PASSED tests/test_html.py::RemoveTagsTest::test_remove_tags PASSED tests/test_html.py::RemoveTagsTest::test_remove_tags_with_attributes PASSED tests/test_html.py::RemoveTagsTest::test_remove_tags_without_tags PASSED tests/test_html.py::RemoveTagsTest::test_returns_unicode PASSED tests/test_html.py::RemoveTagsTest::test_uppercase_tags PASSED tests/test_html.py::RemoveTagsWithContentTest::test_empty_tags PASSED tests/test_html.py::RemoveTagsWithContentTest::test_returns_unicode PASSED tests/test_html.py::RemoveTagsWithContentTest::test_tags_with_shared_prefix PASSED tests/test_html.py::RemoveTagsWithContentTest::test_with_tags PASSED tests/test_html.py::RemoveTagsWithContentTest::test_without_tags PASSED tests/test_html.py::ReplaceEscapeCharsTest::test_returns_unicode PASSED tests/test_html.py::ReplaceEscapeCharsTest::test_with_escape_chars PASSED tests/test_html.py::ReplaceEscapeCharsTest::test_without_escape_chars PASSED tests/test_html.py::UnquoteMarkupTest::test_returns_unicode PASSED tests/test_html.py::UnquoteMarkupTest::test_unquote_markup PASSED tests/test_html.py::GetBaseUrlTest::test_attributes_before_href PASSED tests/test_html.py::GetBaseUrlTest::test_base_url_in_comment PASSED tests/test_html.py::GetBaseUrlTest::test_get_base_url PASSED tests/test_html.py::GetBaseUrlTest::test_get_base_url_latin1 PASSED tests/test_html.py::GetBaseUrlTest::test_get_base_url_latin1_percent PASSED tests/test_html.py::GetBaseUrlTest::test_get_base_url_utf8 PASSED tests/test_html.py::GetBaseUrlTest::test_no_scheme_url PASSED tests/test_html.py::GetBaseUrlTest::test_relative_url_with_absolute_path PASSED tests/test_html.py::GetBaseUrlTest::test_tag_name PASSED tests/test_html.py::GetMetaRefreshTest::test_commented_meta_refresh PASSED tests/test_html.py::GetMetaRefreshTest::test_entities_in_redirect_url PASSED tests/test_html.py::GetMetaRefreshTest::test_float_refresh_intervals PASSED tests/test_html.py::GetMetaRefreshTest::test_get_meta_refresh PASSED tests/test_html.py::GetMetaRefreshTest::test_html_comments_with_uncommented_meta_refresh PASSED tests/test_html.py::GetMetaRefreshTest::test_inside_noscript PASSED tests/test_html.py::GetMetaRefreshTest::test_inside_script PASSED tests/test_html.py::GetMetaRefreshTest::test_leading_newline_in_url PASSED tests/test_html.py::GetMetaRefreshTest::test_multiline PASSED tests/test_html.py::GetMetaRefreshTest::test_nonascii_url_latin1 PASSED tests/test_html.py::GetMetaRefreshTest::test_nonascii_url_latin1_query PASSED tests/test_html.py::GetMetaRefreshTest::test_nonascii_url_utf8 PASSED tests/test_html.py::GetMetaRefreshTest::test_redirections_in_different_ordering__in_meta_tag PASSED tests/test_html.py::GetMetaRefreshTest::test_relative_redirects PASSED tests/test_html.py::GetMetaRefreshTest::test_tag_name PASSED tests/test_html.py::GetMetaRefreshTest::test_without_url PASSED tests/test_http.py::HttpTests::test_basic_auth_header PASSED tests/test_http.py::HttpTests::test_basic_auth_header_encoding PASSED tests/test_http.py::HttpTests::test_headers_dict_to_raw PASSED tests/test_http.py::HttpTests::test_headers_dict_to_raw_listtuple PASSED tests/test_http.py::HttpTests::test_headers_dict_to_raw_wrong_values PASSED tests/test_http.py::HttpTests::test_headers_raw_dict_none PASSED tests/test_http.py::HttpTests::test_headers_raw_to_dict PASSED tests/test_url.py::UrlTests::test_add_or_replace_parameter PASSED tests/test_url.py::UrlTests::test_add_or_replace_parameters PASSED tests/test_url.py::UrlTests::test_add_or_replace_parameters_does_not_change_input_param PASSED tests/test_url.py::UrlTests::test_any_to_uri PASSED tests/test_url.py::UrlTests::test_file_uri_to_path PASSED tests/test_url.py::UrlTests::test_is_url PASSED tests/test_url.py::UrlTests::test_path_to_file_uri PASSED tests/test_url.py::UrlTests::test_safe_download_url PASSED tests/test_url.py::UrlTests::test_safe_url_idna PASSED tests/test_url.py::UrlTests::test_safe_url_idna_encoding_failure PASSED tests/test_url.py::UrlTests::test_safe_url_port_number PASSED tests/test_url.py::UrlTests::test_safe_url_string PASSED tests/test_url.py::UrlTests::test_safe_url_string_bytes_input PASSED tests/test_url.py::UrlTests::test_safe_url_string_bytes_input_nonutf8 PASSED tests/test_url.py::UrlTests::test_safe_url_string_encode_idna_domain_with_port PASSED tests/test_url.py::UrlTests::test_safe_url_string_encode_idna_domain_with_username_and_empty_password_and_port_number PASSED tests/test_url.py::UrlTests::test_safe_url_string_encode_idna_domain_with_username_password_and_port_number PASSED tests/test_url.py::UrlTests::test_safe_url_string_misc PASSED tests/test_url.py::UrlTests::test_safe_url_string_preserve_nonfragment_hash PASSED tests/test_url.py::UrlTests::test_safe_url_string_quote_path PASSED tests/test_url.py::UrlTests::test_safe_url_string_remove_ascii_tab_and_newlines PASSED tests/test_url.py::UrlTests::test_safe_url_string_unsafe_chars PASSED tests/test_url.py::UrlTests::test_safe_url_string_user_and_pass_percentage_encoded PASSED tests/test_url.py::UrlTests::test_safe_url_string_userinfo_unsafe_chars PASSED tests/test_url.py::UrlTests::test_safe_url_string_with_query PASSED tests/test_url.py::UrlTests::test_url_query_cleaner PASSED tests/test_url.py::UrlTests::test_url_query_cleaner_keep_fragments PASSED tests/test_url.py::UrlTests::test_url_query_parameter PASSED tests/test_url.py::UrlTests::test_url_query_parameter_2 PASSED tests/test_url.py::CanonicalizeUrlTest::test_append_missing_path PASSED tests/test_url.py::CanonicalizeUrlTest::test_canonicalize_idns PASSED tests/test_url.py::CanonicalizeUrlTest::test_canonicalize_parse_url PASSED tests/test_url.py::CanonicalizeUrlTest::test_canonicalize_url PASSED tests/test_url.py::CanonicalizeUrlTest::test_canonicalize_url_idempotence PASSED tests/test_url.py::CanonicalizeUrlTest::test_canonicalize_url_idna_exceptions PASSED tests/test_url.py::CanonicalizeUrlTest::test_canonicalize_url_unicode_path PASSED tests/test_url.py::CanonicalizeUrlTest::test_canonicalize_url_unicode_query_string PASSED tests/test_url.py::CanonicalizeUrlTest::test_canonicalize_url_unicode_query_string_wrong_encoding PASSED tests/test_url.py::CanonicalizeUrlTest::test_canonicalize_urlparsed PASSED tests/test_url.py::CanonicalizeUrlTest::test_domains_are_case_insensitive PASSED tests/test_url.py::CanonicalizeUrlTest::test_dont_convert_safe_characters PASSED tests/test_url.py::CanonicalizeUrlTest::test_keep_blank_values PASSED tests/test_url.py::CanonicalizeUrlTest::test_non_ascii_percent_encoding_in_paths PASSED tests/test_url.py::CanonicalizeUrlTest::test_non_ascii_percent_encoding_in_query_arguments PASSED tests/test_url.py::CanonicalizeUrlTest::test_normalize_percent_encoding_in_paths PASSED tests/test_url.py::CanonicalizeUrlTest::test_normalize_percent_encoding_in_query_arguments PASSED tests/test_url.py::CanonicalizeUrlTest::test_port_number PASSED tests/test_url.py::CanonicalizeUrlTest::test_preserve_nonfragment_hash PASSED tests/test_url.py::CanonicalizeUrlTest::test_quoted_slash_and_question_sign PASSED tests/test_url.py::CanonicalizeUrlTest::test_remove_fragments PASSED tests/test_url.py::CanonicalizeUrlTest::test_return_str PASSED tests/test_url.py::CanonicalizeUrlTest::test_safe_characters_unicode PASSED tests/test_url.py::CanonicalizeUrlTest::test_sorting PASSED tests/test_url.py::CanonicalizeUrlTest::test_spaces PASSED tests/test_url.py::CanonicalizeUrlTest::test_strip_spaces PASSED tests/test_url.py::CanonicalizeUrlTest::test_typical_usage PASSED tests/test_url.py::CanonicalizeUrlTest::test_urls_with_auth_and_ports PASSED tests/test_url.py::DataURITests::test_base64 PASSED tests/test_url.py::DataURITests::test_base64_spaces PASSED tests/test_url.py::DataURITests::test_bytes_uri PASSED tests/test_url.py::DataURITests::test_default_mediatype PASSED tests/test_url.py::DataURITests::test_default_mediatype_charset PASSED tests/test_url.py::DataURITests::test_mediatype_parameters PASSED tests/test_url.py::DataURITests::test_missing_comma PASSED tests/test_url.py::DataURITests::test_missing_scheme PASSED tests/test_url.py::DataURITests::test_scheme_case_insensitive PASSED tests/test_url.py::DataURITests::test_text_charset PASSED tests/test_url.py::DataURITests::test_text_uri PASSED tests/test_url.py::DataURITests::test_unicode_uri PASSED tests/test_url.py::DataURITests::test_wrong_base64_param PASSED tests/test_url.py::DataURITests::test_wrong_scheme PASSED tests/test_util.py::StrToUnicodeTestCase::test_deprecation PASSED tests/test_util.py::ToBytesTestCase::test_type_error PASSED tests/test_util.py::ToNativeStrTestCase::test_deprecation PASSED tests/test_util.py::ToUnicodeTestCase::test_type_error PASSED tests/test_util.py::UnicodeToStrTestCase::test_deprecation XFAIL tests/test_url.py::UrlTests::test_add_or_replace_parameter_fail - https://github.com/scrapy/w3lib/issues/164 ======================== 157 passed, 1 xfailed in 0.25s ========================
Test errors Included
Test report (JUnit) Included
<?xml version="1.0" encoding="utf-8"?><testsuites name="pytest tests"><testsuite name="pytest" errors="0" failures="0" skipped="1" tests="158" time="0.241" timestamp="2026-11-14T04:28:59.210785+00:00" hostname="222b117b347d"><testcase classname="tests.test_encoding.RequestEncodingTests" name="test_bom" time="0.002" /><testcase classname="tests.test_encoding.RequestEncodingTests" name="test_html_body_declared_encoding" time="0.000" /><testcase classname="tests.test_encoding.RequestEncodingTests" name="test_html_body_declared_encoding_unicode" time="0.000" /><testcase classname="tests.test_encoding.RequestEncodingTests" name="test_http_encoding_header" time="0.001" /><testcase classname="tests.test_encoding.CodecsEncodingTestCase" name="test_resolve_encoding" time="0.001" /><testcase classname="tests.test_encoding.UnicodeDecodingTestCase" name="test_invalid_utf8" time="0.000" /><testcase classname="tests.test_encoding.UnicodeDecodingTestCase" name="test_utf8" time="0.000" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_BOM" time="0.000" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_autodetect" time="0.001" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_content_type_and_conversion" time="0.001" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_default_encoding" time="0.000" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_empty_body" time="0.000" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_html_encoding" time="0.000" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_invalid_utf8_encoded_body_with_valid_utf8_BOM" time="0.000" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_python_crash" time="0.068" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_replace_wrong_encoding" time="0.000" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_unicode_body" time="0.001" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_utf16_32" time="0.002" /><testcase classname="tests.test_encoding.HtmlConversionTests" name="test_utf8_unexpected_end_of_data_with_valid_utf8_BOM" time="0.000" /><testcase classname="tests.test_html.RemoveEntitiesTest" name="test_browser_hack" time="0.000" /><testcase classname="tests.test_html.RemoveEntitiesTest" name="test_encoding" time="0.000" /><testcase classname="tests.test_html.RemoveEntitiesTest" name="test_illegal_entities" time="0.000" /><testcase classname="tests.test_html.RemoveEntitiesTest" name="test_keep_entities" time="0.000" /><testcase classname="tests.test_html.RemoveEntitiesTest" name="test_missing_semicolon" time="0.000" /><testcase classname="tests.test_html.RemoveEntitiesTest" name="test_regular" time="0.000" /><testcase classname="tests.test_html.RemoveEntitiesTest" name="test_returns_unicode" time="0.000" /><testcase classname="tests.test_html.ReplaceTagsTest" name="test_replace_tags" time="0.000" /><testcase classname="tests.test_html.ReplaceTagsTest" name="test_replace_tags_multiline" time="0.000" /><testcase classname="tests.test_html.ReplaceTagsTest" name="test_returns_unicode" time="0.000" /><testcase classname="tests.test_html.RemoveCommentsTest" name="test_no_comments" time="0.000" /><testcase classname="tests.test_html.RemoveCommentsTest" name="test_remove_comments" time="0.000" /><testcase classname="tests.test_html.RemoveCommentsTest" name="test_returns_unicode" time="0.000" /><testcase classname="tests.test_html.RemoveTagsTest" name="test_keep_argument" time="0.000" /><testcase classname="tests.test_html.RemoveTagsTest" name="test_remove_empty_tags" time="0.000" /><testcase classname="tests.test_html.RemoveTagsTest" name="test_remove_tags" time="0.000" /><testcase classname="tests.test_html.RemoveTagsTest" name="test_remove_tags_with_attributes" time="0.000" 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classname="tests.test_url.CanonicalizeUrlTest" name="test_urls_with_auth_and_ports" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_base64" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_base64_spaces" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_bytes_uri" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_default_mediatype" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_default_mediatype_charset" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_mediatype_parameters" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_missing_comma" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_missing_scheme" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_scheme_case_insensitive" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_text_charset" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_text_uri" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_unicode_uri" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_wrong_base64_param" time="0.000" /><testcase classname="tests.test_url.DataURITests" name="test_wrong_scheme" time="0.000" /><testcase classname="tests.test_util.StrToUnicodeTestCase" name="test_deprecation" time="0.000" /><testcase classname="tests.test_util.ToBytesTestCase" name="test_type_error" time="0.000" /><testcase classname="tests.test_util.ToNativeStrTestCase" name="test_deprecation" time="0.000" /><testcase classname="tests.test_util.ToUnicodeTestCase" name="test_type_error" time="0.000" /><testcase classname="tests.test_util.UnicodeToStrTestCase" name="test_deprecation" time="0.000" /></testsuite></testsuites>
Agent log Included
[ 0.0s] 📋 System Prompt: You are a principal Python software engineer resolving a repository issue in `/workspace`.
[ 0.0s] 🎯 Task Prompt: You are evaluating a software engineering task for repository scrapy/w3lib.
[ 8.0s] 💭 (296 chars) "The user is reporting an `OverflowError: Python int too large to convert to C int` in the
`convert_entity` function of `..."
[ 8.0s] 🔧 run_command grep -rn --include="*.py" "def convert_entity" .
[ 8.0s] → ./w3lib/html.py:69: def convert_entity(m: Match) -> str:
[ 14.3s] 💭 (210 chars) "Okay, `convert_entity` is defined in `w3lib/html.py` on line 69. It seems it is a method
inside a class or a nested func..."
[ 14.3s] 📖 read_file (w3lib/html.py)
[ 14.4s] ✓ {'status': 'ok', 'filepath': 'w3lib/html.py', 'content': '\n It supports both numeric entities
(``&#nnnn;`` and ``&#h…
[ 57.7s] 💭 (1624 chars) "The `convert_entity` function is nested inside another function (which based on the
docstring is `replace_entities`).
T..."
[ 57.7s] 📖 read_file (w3lib/html.py)
[ 57.7s] ✓ {'status': 'ok', 'filepath': 'w3lib/html.py', 'content': '
r"((?P<cdata_s><!\[CDATA\[)(?P<cdata_d>.*?)(?P<cdata_e>\…
[ 71.0s] 💭 (165 chars) "Okay, `replace_entities` is the function. I can call it with a string containing a very
large numeric entity like `{..."
[ 71.0s] 🔧 run_command (7 lines) python3 - <<'PY'
[ 71.2s] → Caught exception: OverflowError: Python int too large to convert to C int
[ 89.0s] 💭 (974 chars) "Yup, reproduced. `OverflowError: Python int too large to convert to C int`.
Now I need to fix it by catching `OverflowE..."
[ 89.0s] 🔧 run_command grep -rn "chr(" w3lib/html.py
[ 89.0s] → 93: return chr(number)
[ 92.4s] 💭 (40 chars) "Only one place.
Now I'll apply the fix."
[ 92.4s] ✏️ edit_file (w3lib/html.py)
[ 92.6s] ✓ {'status': 'ok', 'filepath': 'w3lib/html.py', 'occurrences': 1, 'strategy': 'exact', 'diff': '---
a/w3lib/html.py\n+++ b…
[ 100.7s] 💭 (169 chars) "Now I'll verify the fix with the reproduction script and check if there are any existing
tests for `replace_entities` th..."
[ 100.7s] 🔧 run_command (7 lines) python3 - <<'PY'
[ 100.8s] → Result: ''
[ 116.3s] 💭 (203 chars) "The result is `''` because `remove_illegal` is `True` by default, and
`groups.get("semicolon")` is probably True for `&#..."
[ 116.3s] 🔧 run_command (7 lines) python3 - <<'PY'
[ 116.4s] → Result: '�'
[ 119.6s] 💭 (107 chars) "Correct. It returns the original string if `remove_illegal=False`.
Now let's find relevant existing tests."
[ 119.6s] 🔧 run_command grep -rn "replace_entities" tests/
[ 119.7s] → tests/test_html.py:9: replace_entities,
[ 126.8s] 💭 (69 chars) "I'll run `tests/test_html.py` to make sure I haven't broken anything."
[ 126.8s] 🔧 run_command pytest tests/test_html.py -q --tb=short --no-header
[ 127.2s] → ....................................................... [100%]
[ 153.4s] 💭 (885 chars) "The tests passed.
Now I should double check if there are any other places in `w3lib/html.py` that might be susceptible ..."
[ 153.4s] 🔧 run_command grep -rn "chr(" .
[ 153.4s] → ./w3lib/html.py:93: return chr(number)
[ 158.3s] 💭 (101 chars) "Only in `w3lib/html.py`.
I'm confident in the fix.
One last check: `git status --short && git diff`."
[ 158.3s] 🔧 run_command git status --short && git diff
[ 158.3s] → M w3lib/html.py
[ 162.1s] 💭 (44 chars) "The diff looks correct.
I'm ready to submit."
[ 162.1s] 🤖 submit_patch
[ 162.2s] → submit_patch: {"status": "ok", "patch_size": 464, "files_changed": 1}
[ 176.0s] 💭 (223 chars) "The task is complete. I've reproduced the `OverflowError`, fixed it by adding
`OverflowError` to the caught exceptions i..."
[ 176.0s] ✅ Agent finished: The `convert_entity` helper function in `w3lib.html.replace_entities` was catching
`ValueError` but not `OverflowError`, which occurs when `chr()` is called with an integer too large to be converted t...
Native result row
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"error": null,
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"collected_tests": 158,
"competition_junit_ok": true,
"error": null,
"required_issues_count": 0,
"resolved": true,
"status_counts": {
"PASSED": 157,
"SKIPPED": 1
},
"strict_clean_patch": true,
"test_exit_code": 0
},
"instance_id": "scrapy__w3lib-202",
"pass_idx": 0,
"patch_chars": 464,
"phase1_seconds": 179.1,
"repo": "scrapy/w3lib",
"request_log_path": "/kaggle-root/working/r31/rollouts_X/requests/scrapy__w3lib-202__p0__r7.jsonl",
"resolved": true,
"rollout_idx": 7,
"run_key": "scrapy__w3lib-202__p0__r7",
"strict_clean_patch": true,
"tool_calls": 12,
"total_llm_calls": 14,
"trace_path": "/kaggle-root/working/r31/rollouts_X/traces/trace_scrapy__w3lib-202__p0__r7.json"
}