fix type errors in pandas/tests/arithmetic/test_datetime64.py

Author: SaturnFromTitan

pandas/core/indexes/datetimes.py

@@ -1,6 +1,6 @@
 from datetime import date, datetime, time, timedelta, tzinfo
 import operator
-from typing import Optional
+from typing import Callable, Optional
 import warnings
 
 import numpy as np
@@ -191,6 +191,7 @@ class DatetimeIndex(DatetimeTimedeltaMixin):
 
     _data: DatetimeArray
     tz: Optional[tzinfo]
+    tz_localize: Callable[..., "DatetimeIndex"]
 
     # --------------------------------------------------------------------
     # Constructors

setup.cfg

@@ -132,9 +132,6 @@ check_untyped_defs=False
 [mypy-pandas.conftest]
 ignore_errors=True
 
-[mypy-pandas.tests.arithmetic.test_datetime64]
-ignore_errors=True
-
 [mypy-pandas.tests.extension.decimal.test_decimal]
 ignore_errors=True