8000 Groupby agg works with pd.Series.nunique, but groupby nunique fails with axis=1 by Ynob2000 · Pull Request #30311 · pandas-dev/pandas · GitHub
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Groupby agg works with pd.Series.nunique, but groupby nunique fails with axis=1 #30311

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Merged
merged 11 commits into from
Dec 18, 2019
Merged

Groupby agg works with pd.Series.nunique, but groupby nunique fails with axis=1 #30311

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6646c80
Fix groupby crash when axis = 1 and columns is not a MultiIndex
Dec 12, 2019
0135842
Suggested changes by jreback
Dec 12, 2019
9da523c
whatsnew commit
Dec 12, 2019
7651314
Update pandas/core/groupby/grouper.py
Ynob2000 Dec 12, 2019
c9649ed
Suggested changes for pull request.
Dec 13, 2019
21ca603
Merge branch 'master' of https://github.com/pandas-dev/pandas
Dec 13, 2019
9798ad7
pep8
Dec 13, 2019
eb74469
Delete :
Ynob2000 Dec 13, 2019
3b0f1e7
Suggested fix for 30253
Dec 17, 2019
c4aacce
Merge remote-tracking branch 'upstream/master'
Dec 17, 2019
b5af5d6
Follow up on #30253
Dec 18, 2019
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Update pandas/core/groupby/grouper.py 
Thanks to Tom for the tip

Co-Authored-By: Tom Augspurger <TomAugspurger@users.noreply.github.com>
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@Ynob2000 @TomAugspurger
Ynob2000 and TomAugspurger authored Dec 12, 2019
commit 7651314123d738e37daeb821d0c024acb4601648
2 changes: 1 addition & 1 deletion pandas/core/groupby/grouper.py
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Original file line number Diff line number Diff line change
Expand Up @@ -491,7 +491,7 @@ def get_grouper(
raise ValueError("multiple levels only valid with MultiIndex")

if isinstance(level, str):
axis_name = obj._get_axis_name(axis)
if obj._get_axis(axis) != level:
if getattr(obj, axis_name).name != level:
raise ValueError(
f"level name {level} is not the name of the {axis_name}"
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