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Don't crash if inspect.signature() fails on a function during stubgen. #1124

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Merged
merged 1 commit into from
Aug 17, 2025
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Don't crash if inspect.signature() fails on a function during stubgen. #1124

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12 changes: 11 additions & 1 deletion src/stubgen.py
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Original file line number Diff line number Diff line change
Expand Up @@ -428,7 +428,17 @@ def put_function(self, fn: Callable[..., Any], name: Optional[str] = None, paren
overload = self.import_object("typing", "overload")
self.write_ln(f"@{overload}")

sig_str = f"{name}{self.signature_str(signature(fno))}"
try:
sig = signature(fno)
except ValueError:
sig = None

if sig is not None:
sig_str = f"{name}{self.signature_str(sig)}"
else:
# If inspect.signature fails, use a maximally permissive type.
any_type = self.import_object("typing", "Any")
sig_str = f"{name}(*args, **kwargs) -> {any_type}"

# Potentially copy docstring from the implementation function
docstr = fno.__doc__
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