[GitHub] [arrow] jorisvandenbossche commented on issue #6992: ARROW-7950: [Python] Determine + test minimal pandas version + raise error when pandas is too old

[GitBox <gi...@apache.org>]

jorisvandenbossche commented on issue #6992:
URL: https://github.com/apache/arrow/pull/6992#issuecomment-616595450


   This is still WIP (depending on which pandas version we choose, we can clean up some things in the pandas-shim.pxi), but:
   
   - I defined the minimal pandas version now as pandas 0.23 (released 2 years ago). But, I also ran tests with pandas 0.22 and pandas 0.21, and tests are still passing for those. So we *could* also set this minimal version at 0.21 (the mailing list thread that triggered this issue reported an error on pandas 0.20). But personally, I think 0.23 is more than fine.
   - I now raise an error when the pandas version is too low. But, since it is actually working (mostly) for lower versions as well, we could also only give a warning instead. 


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