pyright 1.1.276
/home/runner/work/pandas/pandas/pandas/core/reshape/encoding.py
  /home/runner/work/pandas/pandas/pandas/core/reshape/encoding.py:245:13 - error: Expression of type "DtypeObj" cannot be assigned to declared type "str | dtype | Type[str] | Type[complex] | Type[bool] | Type[object] | None"
    Type "DtypeObj" cannot be assigned to type "str | dtype | Type[str] | Type[complex] | Type[bool] | Type[object] | None"
      Type "ExtensionDtype" cannot be assigned to type "str | dtype | Type[str] | Type[complex] | Type[bool] | Type[object] | None"
        "ExtensionDtype" is incompatible with "str"
        "ExtensionDtype" is incompatible with "dtype"
        Type "ExtensionDtype" cannot be assigned to type "Type[str]"
        Type "ExtensionDtype" cannot be assigned to type "Type[complex]"
        Type "ExtensionDtype" cannot be assigned to type "Type[bool]"
        Type "ExtensionDtype" cannot be assigned to type "Type[object]"
    ... (reportGeneralTypeIssues)
1 error, 0 warnings, 0 informations 
Completed in 18.065sec

mypy.....................................................................Failed
- hook id: mypy
- duration: 216.68s
- exit code: 1

pandas/core/reshape/encoding.py:245: error: Incompatible types in assignment (expression has type "Union[dtype[Any], ExtensionDtype]", variable has type "Optional[Union[str, dtype[Any], Type[str], Type[complex], Type[bool], Type[object]]]")  [assignment]