DEPR: 0.21 deprecations master issue

[jreback]

Contemplated deprecations for 0.20.0

• Deprecate Panel, Deprecation of Panel ? #13563 (DEPR: Panel deprecated #15601) (0.20.0)
• Deprecate .ix: DEPR: deprecate .ix #14218 (DEPR: deprecate .ix in favor of .loc/.iloc #15113) (0.20.0)
• Deprecate .filter & .select DEPR: filter & select #12401 (DEPR: deprecate .select() #17633, 0.21.0)
• Deprecate .between DEPR: pd.Series.between #13027
• Deprecate .sortlevel DEPR: sortlevel #14279 (DEPR: deprecate sortlevel in favor of sort_index #15099) (0.20.0)
• remove things in DEPR: Clean up list of deprecations from prior versions #6581 in 0.17.0
• top-level namespace cleanup API: clean-up top-level namespace #13790 (0.20.0)
• TimeSeries class (DEPR: remove pd.TimeSeries & Series.is_time_series #15098) (0.20.0)

[wesm]

What do you think about wesm/pandas2#26?

[jreback]

updated

[jorisvandenbossche]

@wesm @jreback All deprecated things are listed at #6581 (at least if we don't forget to add them). So normally, in a possible 0.20, we would remove all the things deprecated in 0.17, so that includes pandas.ga, TimeSeries, LongPanel, pandas.rpy etc. I think those are rather clear that they can be removed. I would keep this issue to discuss new, possible controversial deprecations/tentative removals.

[jreback]

updated!

[jreback]

let's thing again about: #10734 (.combine) as may want to use that more generally.

[jorisvandenbossche]

Something we should discuss is whether we would like to remove things more aggressively (eg that were only deprecated in 0.18/0.19) for 1.0

[jreback]

long discussion about fixing the .rename/.reindex/.drop API to be consistent: #12392, summary here

[jorisvandenbossche]

long discussion about fixing the .rename/.reindex/.drop API to be consistent

yes, I wanted to pick up that one for some time. I still think it can be done in a backwards compatible way, should look again at it.

[jorisvandenbossche]

See also #13790 for some top-level functions to deprecate

[TomAugspurger]

Moved filter & between to #21894