[ENH] MultiIndex: astype dict

[ghost]

astype multiindex with dict-like of names/int names index with pandas dtype

• closes #xxxx
• tests added / passed
• Ensure all linting tests pass, see here for how to run them
• whatsnew entry

[pep8speaks]

Hello @NickFillot! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file pandas/core/frame.py:

Line 5557:1: W293 blank line contains whitespace
Line 5560:1: W293 blank line contains whitespace
Line 5568:1: W293 blank line contains whitespace
Line 5570:1: W293 blank line contains whitespace

• In the file pandas/core/indexes/multi.py:

Line 3682:1: W293 blank line contains whitespace
Line 3701:1: W293 blank line contains whitespace

Comment last updated at 2021-10-02 14:25:34 UTC

[debnathshoham]

Thanks for PR @NickFillot!
Is there a particular issue you're working on?

[ghost]

Hello,

I am trying to fix index typing, on DataFrame.set_index method it doesn't recover the old dtypes

Br
Nicolas

[attack68]

Hi @NickFillot, what @debnathshoham means is: is there a pandas issue number that you are working on. Has this problem been discussed?

[ghost]

Hello,

After deeper checks, i just saw it was pandas.Int64Dtype() (nullable dtypes), and i had object dtype in index

I think it would be nice to set pandas nullable types as dtype instead of object if possible

My bad, thanks for support

Br
Nicolas

[ghost]

Issue for feature request if possible: Issue