BUG: groupby.agg behavior changes in the present of args/kwargs#64113
Open
rhshadrach wants to merge 3 commits intopandas-dev:mainfrom
Open
BUG: groupby.agg behavior changes in the present of args/kwargs#64113rhshadrach wants to merge 3 commits intopandas-dev:mainfrom
rhshadrach wants to merge 3 commits intopandas-dev:mainfrom
Conversation
rhshadrach
commented
Feb 11, 2026
|
|
||
| result = ( | ||
| df.groupby("Name", observed=observed) | ||
| .agg(DataFrame.sum, skipna=True) |
Member
Author
There was a problem hiding this comment.
It's possible some users are relying on this, but this is bad enough behavior I think we should cal this a bug. For example, if you remove skipna=True or having multiple groupings (e.g. ["Name1", "Name2"]), then this raises on main.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
df.aggcall passes different things to a custom function depending on whether a unused kwarg is supplied or not #39169doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.AGENTS.md.