No types for DatetimeIndex attributes

[ruler501]

Describe the bug

import pandas

x = pandas.DatetimeIndex()
x.month

Fails to typecheck in mypy even though this attribute is documented here https://pandas.pydata.org/docs/reference/api/pandas.DatetimeIndex.month.html

To Reproduce

1. Run type checker of your choice on the above snippet with latest version of pandas and pandas-stubs

Please complete the following information:

• OS: Linux
• OS Version NixOS unstable
• python version 3.9.13
• version of type checker mypy 0.971
• version of installed pandas-stubs 1.4.3.220807

Additional context
Also tested with pyright language server and got same error, not sure what version of pyright.

[Dr-Irv]

Thanks for reporting this. We'll have to change pandas.core.indexes.accessors.pyi to use Generic so that it works right for Series.dt and DatetimeIndex. I've started to work on this

[ruler501]

Thanks. I also noticed some issues with indexing dataframes I'll try to document the failures and report them too.