Skip to content

Issues: pandas-dev/pandas

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Clear current search query, filters, and sorts
10 Open 3 Closed
10 Open 3 Closed
Author
Filter by author
Loading
Label
Filter by label
Loading
Use alt + click/return to exclude labels
or ⇧ + click/return for logical OR
Projects
Filter by project
Loading
Milestones
Filter by milestone
Loading
Assignee
Filter by who’s assigned
Sort
Sort by
Newest Oldest Most commented Least commented Recently updated Least recently updated Best match
Most reactions
👍 👎 😄 🎉 😕 ❤️ 🚀 👀

Issues list

BUG: expanding dataframe row-wise with single-element-list is no-op, but two-element-list copies Bug setitem-with-expansion
#56203 opened Nov 27, 2023 by MarcoGorelli
3 tasks done
@sleepallday
5
BUG: time deltas are always inferred as pd.Timedelta setitem-with-expansion Timedelta Timedelta data type
#56010 opened Nov 16, 2023 by phofl
@xiaohuanlin
3
BUG: Setting a pyarrow scalar value with the same type that expands the series changes the dtype into object Arrow pyarrow functionality Bug Indexing Related to indexing on series/frames, not to indexes themselves setitem-with-expansion
#52235 opened Mar 27, 2023 by char101
3 tasks done
2
1
BUG: assignment with enlargement gives object dtype with ExtensionArrays Bug ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves setitem-with-expansion
#32346 opened Feb 29, 2020 by jorisvandenbossche
1
14
df.loc[0] = row, datatype changes Bug Dtype Conversions Unexpected or buggy dtype conversions Indexing Related to indexing on series/frames, not to indexes themselves setitem-with-expansion
#31805 opened Feb 8, 2020 by kashiwachen
5
DataFrame.__setitem__ with MultiIndex fails when expanding with new key Bug Indexing Related to indexing on series/frames, not to indexes themselves MultiIndex setitem-with-expansion
#27248 opened Jul 5, 2019 by jottbele
2
Setting with enlargement on categorical data Bug Categorical Categorical Data Type Indexing Related to indexing on series/frames, not to indexes themselves setitem-with-expansion
#25383 opened Feb 20, 2019 by 0phoff
1
3
Unintended cast to float when adding row with multiindex Bug Indexing Related to indexing on series/frames, not to indexes themselves MultiIndex setitem-with-expansion
#17026 opened Jul 19, 2017 by toobaz
1
Spurious casting to float when assigning both integers and floats Bug Dtype Conversions Unexpected or buggy dtype conversions Indexing Related to indexing on series/frames, not to indexes themselves setitem-with-expansion
#15231 opened Jan 25, 2017 by toobaz
8
BUG/ENH: dtype change on enlargement Bug Dtype Conversions Unexpected or buggy dtype conversions Indexing Related to indexing on series/frames, not to indexes themselves setitem-with-expansion
#6485 opened Feb 26, 2014 by jreback
5
ProTip! Type g p on any issue or pull request to go back to the pull request listing page.