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Fix attribute error on Python 3.9 with typing.Sequence #497

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Dec 13, 2024
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Fix attribute error on Python 3.9 with typing.Sequence #497

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3 changes: 2 additions & 1 deletion pydantic_settings/sources.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1935,7 +1935,8 @@ def _metavar_format_recurse(self, obj: Any) -> str:
return self._metavar_format_choices([val.name for val in obj])
elif isinstance(obj, WithArgsTypes):
return self._metavar_format_choices(
list(map(self._metavar_format_recurse, self._get_modified_args(obj))), obj_qualname=obj.__qualname__
list(map(self._metavar_format_recurse, self._get_modified_args(obj))),
obj_qualname=obj.__qualname__ if hasattr(obj, '__qualname__') else str(obj),
)
elif obj is type(None):
return self.cli_parse_none_str
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