alias for slice(None)

[den-run-ai]

Having bunch of slice(None) in multilevel indexes (>=3 levels) looks pretty unreadable.

Does it make sense to have an alias, maybe pd.any?

For example in numpy the np.newaxis is alias for None:

https://docs.scipy.org/doc/numpy-1.13.0/reference/arrays.indexing.html#numpy.newaxis

[max-sixty]

Have you checked out pd.IndexSlice?

[jreback]

this is fully documented here: http://pandas.pydata.org/pandas-docs/stable/advanced.html#using-slicers

[den-run-ai]

I was not aware about IndexSlice! Thanks for the tip.

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