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langchain[patch]: set maxsplit when parse python function docstring (#14121)

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Description

when the desc of arg in python docstring contains ":", the
`_parse_python_function_docstring` will raise **ValueError: too many
values to unpack (expected 2)**.

A sample desc would be:
"""
Args: 
    error_arg: this is an arg with an additional ":" symbol
"""

So, set `maxsplit` parameter to fix it.
This commit is contained in:
lijie 2023-12-02 02:46:53 +08:00 committed by GitHub
parent ae646701c4
commit 371bcb7580
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1 changed files with 1 additions and 1 deletions
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2
libs/langchain/langchain/chains/openai_functions/base.py
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@ -75,7 +75,7 @@ def _parse_python_function_docstring(function: Callable) -> Tuple[str, dict]:
arg = None
for line in args_block.split("\n")[1:]:
if ":" in line:
arg, desc = line.split(":")
arg, desc = line.split(":", maxsplit=1)
arg_descriptions[arg.strip()] = desc.strip()
elif arg:
arg_descriptions[arg.strip()] += " " + line.strip()