LangChain math adapter can corrupt answers while removing Answer prefix
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Assessment
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Newbie friendliness
- 76/100
Research direction
Start by locating LangChainMathChainCompletionFn and the existing local tests for this adapter. Verify prefixed and unprefixed responses, then add regression coverage showing that only a leading Answer: prefix and surrounding whitespace are removed while answer content remains unchanged.
Written by the indexing model from the issue text.
Description
Describe the bug
LangChainMathChainCompletionFn tries to remove LangChain's Answer: prefix with:
response = response.strip("Answer:").strip()
str.strip() does not remove an exact prefix. Its argument is treated as a set of characters to remove from both ends of the string. As a result, valid answer text can be corrupted. For example:
"Answer: ten".strip("Answer:").strip() == "t"
Even a response without the prefix such as ten can be changed to t.
Expected behavior
Remove the exact leading Answer: prefix when present, then trim surrounding whitespace. Response content that is not part of that prefix must remain unchanged.
Proposed fix
Use an exact prefix check/removal instead of str.strip("Answer:"), and add focused local regression coverage for prefixed and unprefixed answers.
- Dominant language
- Python
- Stars
- 19.5k
- Forks
- 3.1k
- PR merge metrics
- No merged PRs in 30d
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