Skip to content

Pull requests: pandas-dev/pandas

New pull request New
Clear current search query, filters, and sorts
0 Open 730 Closed
0 Open 730 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
Reviews
Filter by reviews
No reviews Review required Approved review Changes requested
Assignee
Filter by who’s assigned
Assigned to nobody Loading
Sort
Sort by
Newest Oldest Most commented Least commented Recently updated Least recently updated Best match
Most reactions
👍 👎 😄 🎉 😕 ❤️ 🚀 👀

Pull requests list

REGR: fix string contains/match methods with compiled regex with flags Regression Functionality that used to work in a prior pandas version Strings String extension data type and string data
#62251 by jorisvandenbossche was merged Sep 5, 2025 Loading… updated Sep 5, 2025 2.3.3
4
BUG: round on object columns no longer raises a TypeError Bug Numeric Operations Arithmetic, Comparison, and Logical operations Regression Functionality that used to work in a prior pandas version
#61399 by KevsterAmp was merged May 21, 2025 Loading… updated May 21, 2025
5 tasks done
2.3
1
11
PERF: Restore old performances with .isin() on columns typed as np.ui… isin isin method Performance Memory or execution speed performance Regression Functionality that used to work in a prior pandas version
#61320 by pbrochart was merged May 19, 2025 Loading… updated May 19, 2025
1 of 5 tasks
3.0
1
4
REGR: Interpolate with method=index Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Regression Functionality that used to work in a prior pandas version
#61183 by rhshadrach was merged Mar 29, 2025 Loading… updated Mar 29, 2025
1 of 5 tasks
3.0
1
5
REGR: groupby.value_counts with all NA values Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug Groupby Regression Functionality that used to work in a prior pandas version
#59999 by rhshadrach was merged Oct 7, 2024 Loading… updated Oct 8, 2024
1 of 5 tasks
3.0
1
1
REGR: ensure numpy fixed-size binary/string arrays are converted to object dtype for Index creation Dtype Conversions Unexpected or buggy dtype conversions Index Related to the Index class or subclasses Regression Functionality that used to work in a prior pandas version
#57995 by PF2100 was closed Sep 25, 2024 Loading… updated Sep 25, 2024
4 of 5 tasks
2.2.3
1
6
REGR: from_records not initializing subclasses properly Regression Functionality that used to work in a prior pandas version Stale
#58145 by phofl was closed Sep 25, 2024 Loading… updated Sep 25, 2024
5 tasks
2.2.3
1
3
CoW: Use weakref callbacks to track dead references Regression Functionality that used to work in a prior pandas version Stale
#55539 by wangwillian0 was closed Aug 19, 2024 Loading… updated Aug 19, 2024
4 of 5 tasks
1
30
REGR: Index.map adding back tz to tz-agnostic result Apply Apply, Aggregate, Transform, Map Index Related to the Index class or subclasses Regression Functionality that used to work in a prior pandas version
#57475 by rhshadrach was closed Jul 4, 2024 • Draft updated Jul 4, 2024
1 of 5 tasks
2.2.3
1
7
REGR: Performance of DataFrame.stack where columns are not a MultiIndex Performance Memory or execution speed performance Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#58027 by rhshadrach was merged Mar 27, 2024 Loading… updated Mar 27, 2024
1 of 5 tasks
3.0
1
Backport PR #57102 on branch 2.2.x (ENH: Add skipna to groupby.first and groupby.last) Enhancement Groupby Reduction Operations sum, mean, min, max, etc. Regression Functionality that used to work in a prior pandas version
#57141 by meeseeksmachine was merged Jan 30, 2024 Loading… updated Mar 18, 2024 2.2.1
BUG: Fix near-minimum timestamp handling Regression Functionality that used to work in a prior pandas version Timestamp pd.Timestamp and associated methods
#57314 by robert-schmidtke was merged Feb 22, 2024 Loading… updated Feb 23, 2024
4 of 5 tasks
2.2.1
1
20
REGR: DataFrame.transpose resulting in not contiguous data on nullable EAs Bug Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#57474 by rhshadrach was merged Feb 18, 2024 Loading… updated Feb 23, 2024
1 of 5 tasks
2.2.1
1
5
Backport PR #57314 on branch 2.2.x (BUG: Fix near-minimum timestamp handling) Regression Functionality that used to work in a prior pandas version Timestamp pd.Timestamp and associated methods
#57573 by meeseeksmachine was merged Feb 23, 2024 Loading… updated Feb 23, 2024 2.2.1
Backport PR #57474 on branch 2.2.x (REGR: DataFrame.transpose resulting in not contiguous data on nullable EAs) Bug Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#57496 by rhshadrach was merged Feb 19, 2024 Loading… updated Feb 19, 2024
5 tasks
2.2.1
2
REGR: DataFrame.update emits spurious warning about downcasting Bug Conditionals E.g. where, mask, case_when DataFrame DataFrame data structure Dtype Conversions Unexpected or buggy dtype conversions Regression Functionality that used to work in a prior pandas version Warnings Warnings that appear or should be added to pandas
#57485 by rhshadrach was merged Feb 18, 2024 Loading… updated Feb 19, 2024
1 of 5 tasks
2.2.1
2
Backport PR #57311 on branch 2.2.x (Fixing multi method for to_sql for non-oracle databases) IO SQL to_sql, read_sql, read_sql_query Regression Functionality that used to work in a prior pandas version
#57466 by meeseeksmachine was merged Feb 17, 2024 Loading… updated Feb 17, 2024 2.2.1
Fixing multi method for to_sql for non-oracle databases IO SQL to_sql, read_sql, read_sql_query Regression Functionality that used to work in a prior pandas version
#57311 by kassett was merged Feb 17, 2024 Loading… updated Feb 17, 2024
5 tasks
2.2.1
1
19
REGR: assert_series_equal defaulting to check_exact=True for Index Regression Functionality that used to work in a prior pandas version Testing pandas testing functions or related to the test suite
#57341 by phofl was merged Feb 12, 2024 Loading… updated Feb 12, 2024
5 tasks
2.2.1
1
4
Backport PR #57341 on branch 2.2.x (REGR: assert_series_equal defaulting to check_exact=True for Index) Regression Functionality that used to work in a prior pandas version Testing pandas testing functions or related to the test suite
#57380 by meeseeksmachine was merged Feb 12, 2024 Loading… updated Feb 12, 2024 2.2.1
Backport PR #57323 on branch 2.2.x (REGR: Fix regression when grouping over a Series) Copy / view semantics Regression Functionality that used to work in a prior pandas version
#57339 by meeseeksmachine was merged Feb 10, 2024 Loading… updated Feb 10, 2024 2.2.1
REGR: Fix regression when grouping over a Series Copy / view semantics Regression Functionality that used to work in a prior pandas version
#57323 by phofl was merged Feb 10, 2024 Loading… updated Feb 10, 2024
5 tasks
2.2.1
1
4
Backport PR #57333 on branch 2.2.x (REGR: merge with 3rd party EA's can sometimes raise ValueError) Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#57337 by lukemanley was merged Feb 10, 2024 Loading… updated Feb 10, 2024 2.2.1
REGR: merge with 3rd party EA's can sometimes raise ValueError Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#57333 by lukemanley was merged Feb 10, 2024 Loading… updated Feb 10, 2024
5 tasks done
2.2.1
1
7
Backport PR #57329 on branch 2.2.x (REGR: CategoricalIndex.difference with null values) Categorical Categorical Data Type Regression Functionality that used to work in a prior pandas version setops union, intersection, difference, symmetric_difference
#57336 by meeseeksmachine was merged Feb 10, 2024 Loading… updated Feb 10, 2024 2.2.1
ProTip! Add no:assignee to see everything that’s not assigned.