diff options
Diffstat (limited to 'Lib/dataclasses.py')
| -rw-r--r-- | Lib/dataclasses.py | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Lib/dataclasses.py b/Lib/dataclasses.py index 4026c8b..a73cdc2 100644 --- a/Lib/dataclasses.py +++ b/Lib/dataclasses.py @@ -1128,8 +1128,13 @@ def _process_class(cls, init, repr, eq, order, unsafe_hash, frozen, if not getattr(cls, '__doc__'): # Create a class doc-string. - cls.__doc__ = (cls.__name__ + - str(inspect.signature(cls)).replace(' -> None', '')) + try: + # In some cases fetching a signature is not possible. + # But, we surely should not fail in this case. + text_sig = str(inspect.signature(cls)).replace(' -> None', '') + except (TypeError, ValueError): + text_sig = '' + cls.__doc__ = (cls.__name__ + text_sig) if match_args: # I could probably compute this once |