gh-104328: Fix typo in ``typing.Generic`` multiple inheritance error message (#104335)

diff --git a/Lib/typing.py b/Lib/typing.py
index 0dacdd9031a77628bddb9642de55e61e5c5af02b..4f8cba88632d6a6f6102848c57231c2b3ad36495 100644 (file)
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -1896,7 +1896,7 @@ class Generic:
                         base.__origin__ is Generic):
                     if gvars is not None:
                         raise TypeError(
-                            "Cannot inherit from Generic[...] multiple types.")
+                            "Cannot inherit from Generic[...] multiple times.")
                     gvars = base.__parameters__
             if gvars is not None:
                 tvarset = set(tvars)