diff options
Diffstat (limited to 'Lib/typing.py')
| -rw-r--r-- | Lib/typing.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/typing.py b/Lib/typing.py index 1a4982e..d900036 100644 --- a/Lib/typing.py +++ b/Lib/typing.py @@ -487,6 +487,9 @@ class UnionMeta(TypingMeta): return Any if isinstance(t1, TypeVar): continue + if isinstance(t1, _TypeAlias): + # _TypeAlias is not a real class. + continue if any(issubclass(t1, t2) for t2 in all_params - {t1} if not isinstance(t2, TypeVar)): all_params.remove(t1) |