Skip to content

Pull requests: pandas-dev/pandas

New pull request New
Clear current search query, filters, and sorts
3 Open 1,297 Closed
3 Open 1,297 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

PERF: make io imports lazy in PY37+ IO Data IO issues that don't fit into a more specific label Performance Memory or execution speed performance
#28437 by jbrockmendel was closed Sep 15, 2019 Loading…
PERF: _getitem_view IO Stata read_stata, to_stata Performance Memory or execution speed performance
#43272 by jbrockmendel was closed Aug 30, 2021 Loading…
4 tasks
PERF: change Series indexing on multi-indexes to use a fast path (GH5567) Indexing Related to indexing on series/frames, not to indexes themselves MultiIndex Performance Memory or execution speed performance
#6364 by jreback was merged Feb 16, 2014 Loading… 0.14.0
1
PERF: perf improvements in single-dtyped indexing (GH6484) Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance
#6486 by jreback was merged Feb 27, 2014 Loading… 0.14.0
1
PERF/API: concat improvements API Design Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#6438 by jreback was merged Feb 21, 2014 Loading… 0.14.0
2
PERF: Series.transform speedups (GH6496) Groupby Performance Memory or execution speed performance
#7421 by jreback was merged Jun 11, 2014 Loading… 0.14.1
1
PERF: performance gains in DataFrame groupby.transform for ufuncs (GH7383) Groupby Performance Memory or execution speed performance
#7463 by jreback was merged Jun 16, 2014 Loading… 0.14.1
1
PERF: perf improvements in timedelta conversions from integer dtypes Performance Memory or execution speed performance Timedelta Timedelta data type
#6754 by jreback was merged Apr 1, 2014 Loading… 0.14.0
PERF: vbench for mixed groupby with datetime (GH7555) Dtype Conversions Unexpected or buggy dtype conversions Groupby Performance Memory or execution speed performance
#7560 by jreback was merged Jun 24, 2014 Loading… 0.14.1
1
PERF: improve perf of array_equivalent_object (GH8512) Performance Memory or execution speed performance
#8570 by jreback was merged Oct 17, 2014 Loading… 0.15.0
PERF: fixup datetime_index repr perf (GH8556) Performance Memory or execution speed performance
#8557 by jreback was merged Oct 15, 2014 Loading… 0.15.0
1
PERF: perf improvements for Series.transform (revised) (GH6496) Groupby Performance Memory or execution speed performance
#7975 by jreback was merged Aug 10, 2014 Loading… 0.15.0
PERF: better perf on min/max on indices not containing NaT for DatetimeIndex/PeriodsIndex Performance Memory or execution speed performance
#7684 by jreback was merged Jul 7, 2014 Loading… 0.14.1
1
PERF: add copy=True argument to pd.concat to enable pass-thru concats with complete blocks (GH8252) Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#8331 by jreback was merged Sep 20, 2014 Loading… 0.15.0
1
PERF: DataFrame.groupby.nunique Groupby Performance Memory or execution speed performance
#15201 by jreback was closed Jan 24, 2017 Loading… 0.20.0
1
PERF: Update ASV publish config Performance Memory or execution speed performance
#17293 by TomAugspurger was merged Aug 20, 2017 Loading… 0.21.0
PERF: write basic datetimes faster IO CSV read_csv, to_csv Output-Formatting __repr__ of pandas objects, to_string Performance Memory or execution speed performance
#10271 by jreback was merged Jun 4, 2015 Loading… 0.16.2
PERF: perf improvements in drop_duplicates for integer dtyped arrays Performance Memory or execution speed performance
#10917 by jreback was merged Aug 28, 2015 Loading… 0.17.0
PERF: improve perf of writing csv's with datetimes IO CSV read_csv, to_csv Performance Memory or execution speed performance
#9940 by jreback was merged Apr 20, 2015 Loading… 0.16.1
ASV: excel asv occasional failure IO Excel read_excel, to_excel Performance Memory or execution speed performance
#19811 by jreback was merged Feb 21, 2018 Loading… 0.23.0
1
Backport PR #54510 on branch 2.1.x (Speed up StringDtype arrow implementation for merge) Performance Memory or execution speed performance Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#54689 by meeseeksmachine was merged Aug 22, 2023 Loading… 2.1
Backport PR #54508 on branch 2.1.x (PERF: DataFrame.iloc[int] for EA dtypes) ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance
#54700 by meeseeksmachine was merged Aug 23, 2023 Loading… 2.1
Backport PR #55518 on branch 2.1.x (CoW: Use exponential backoff when clearing dead references) Copy / view semantics Performance Memory or execution speed performance
#55625 by meeseeksmachine was merged Oct 22, 2023 Loading… 2.1.2
Backport PR #51592 on branch 2.0.x (PERF: maybe_promote) Dtype Conversions Unexpected or buggy dtype conversions Performance Memory or execution speed performance
#51735 by meeseeksmachine was merged Mar 2, 2023 Loading… 2.0
Backport PR #52548 on branch 2.0.x (PERF: Improve performance for arrow engine and dtype_backend=pyarrow for datetime conversion) Arrow pyarrow functionality IO CSV read_csv, to_csv Performance Memory or execution speed performance
#52592 by meeseeksmachine was merged Apr 11, 2023 Loading… 2.0.1
ProTip! Add no:assignee to see everything that’s not assigned.