Deprecated RangeIndex #762

[tseppelt]

No description provided.

[kevinushey]

I think we need the PR to be backwards-compatible with older versions of pandas as well. Do older versions of Pandas also provide these members without the _ prefix?

I wonder if we can introspect on the installed version of pandas in some way?

[tseppelt]

As far as I understand the pandas code, the new attributes were introduced in this pull request in June 2019. Before June 2019 these members did not exist, I think.

[charlstown]

I have the same issue:
sys:1: FutureWarning: RangeIndex._* is deprecated and will be removed in a future version. Use RangeIndex.start instead
*start, stop step

The funny thing is, I didn't get the error at first but now every time I try to run py$dataframe I'm getting a fatal error.

[kevinushey]

>>> pandas.__version__
'0.24.2'
>>> index.start
AttributeError: 'RangeIndex' object has no attribute 'start'

So we definitely cannot just switch from _start to start -- we need to check which of the two exists and use that.

[kevinushey]

Fixed on master now.