better than cast

Author: Laurent Mutricy

pandas/_testing/__init__.py

@@ -107,6 +107,7 @@
 
 COMPLEX_DTYPES: list[Dtype] = [complex, "complex64", "complex128"]
 STRING_DTYPES: list[Dtype] = [str, "str", "U"]
+COMPLEX_FLOAT_DTYPES: list[Dtype] = [*COMPLEX_DTYPES, *FLOAT_NUMPY_DTYPES]
 
 DATETIME64_DTYPES: list[Dtype] = ["datetime64[ns]", "M8[ns]"]
 TIMEDELTA64_DTYPES: list[Dtype] = ["timedelta64[ns]", "m8[ns]"]

pandas/conftest.py

@@ -84,9 +84,6 @@
         Hashable,
         Iterator,
     )
-from typing import cast
-
-from pandas._typing import Dtype
 
 try:
     import pyarrow as pa
@@ -1451,7 +1448,7 @@ def complex_dtype(request):
     return request.param
 
 
-@pytest.fixture(params=tm.COMPLEX_DTYPES + cast(list[Dtype], tm.FLOAT_NUMPY_DTYPES))
+@pytest.fixture(params=tm.COMPLEX_FLOAT_DTYPES)
 def complex_or_float_dtype(request):
     """
     Parameterized fixture for complex and numpy float dtypes.