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Pull requests list

ENH: pivot/groupby index with nan (GH3729) Bug Enhancement Groupby Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#21669 by andrewdalecramer was closed Nov 23, 2018 Loading…
4 tasks done
1
10 🎉 1
BUG: Fixed DataFrame.describe percentiles are ndarray w/ no median Bug Numeric Operations Arithmetic, Comparison, and Logical operations
#14914 by pbreach was closed Dec 19, 2016 Loading… 0.20.0
9 🎉 1
BUG: DataFrame.first_valid_index() fails if there is no valid entry. Bug Error Reporting Incorrect or improved errors from pandas Indexing Related to indexing on series/frames, not to indexes themselves
#17488 by skwbc was merged Sep 23, 2017 Loading…
4 tasks done
0.21.0
1
11 🎉 1
BUG: Fix IntervalIndex.get_loc/get_indexer for IntervalIndex of length one Bug Indexing Related to indexing on series/frames, not to indexes themselves Interval Interval data type
#20946 by jschendel was merged May 5, 2018 Loading…
5 tasks done
0.23.0
2
8 🎉 1
Read csv category fix Bug IO CSV read_csv, to_csv
#18402 by sam-cohan was merged Nov 22, 2017 Loading…
4 tasks done
0.21.1
1
26 🎉 1
BUG: Patch handling of keep_default_na=False Bug IO CSV read_csv, to_csv
#19260 by gfyoung was merged Jan 18, 2018 Loading… 0.23.0
16 🎉 1
BUG: merge not always following documented sort behavior Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#54611 by lukemanley was merged Aug 23, 2023 Loading…
10 tasks done
2.2
6
3 🎉 1
BUG: DataFrame.stack with EA columns Bug ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#44401 by jbrockmendel was merged Nov 12, 2021 Loading…
4 tasks done
1.4
1
1 🎉 1
REGR: maybe_convert_objects ignoring uints Bug Dtype Conversions Unexpected or buggy dtype conversions Regression Functionality that used to work in a prior pandas version
#47475 by rhshadrach was merged Jul 10, 2022 Loading…
5 tasks done
1.5
1
10 🎉 1
BUG: reset_index doesn't preserve dtype on empty frame with MultiIndex Bug MultiIndex
#34942 by rhshadrach was merged Jun 23, 2020 Loading…
5 tasks done
1.1
1
2 🎉 1
BUG: date comparison fails when series is all pd.NaT values Bug Datetime Datetime data dtype Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#61200 by Mohit-Kundu was merged Apr 15, 2025 Loading…
4 of 5 tasks
3.0
1
19 🎉 1
BUG - pd.concat with all Series on axis=1 ignores the names argument (Issue: 23490) Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#23499 by ms7463 was merged Nov 6, 2018 Loading…
3 of 4 tasks
0.24.0
1
13 🎉 1
BUG: Ensure that fill_na in Categorical only replaces null values Bug Categorical Categorical Data Type Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#27932 by MarcoGorelli was merged Aug 16, 2019 Loading…
5 tasks done
0.25.1
1
7 🎉 1
BUG: parsing multi-column headers in read_csv (GH6051) Bug IO CSV read_csv, to_csv
#6170 by waitingkuo was closed Jan 18, 2015 Loading…
1
28
ENH: add support for Python 3.4 ast.NameConstant Bug IO HDF5 read_hdf, HDFStore
#6243 by cgohlke was merged Feb 4, 2014 Loading…
@cpcloud
8
BUG: GH10355 groupby std() doesnt sqrt grouping cols Bug Groupby
#11507 by henrystokeley was closed Jan 6, 2016 Loading…
12
BUG: GH13629 Binned groupby median function calculates median on empt… Bug Categorical Categorical Data Type Groupby
#14225 by paul-mannino was merged Sep 18, 2016 Loading…
1
10
Pivot table drops column/index names=nan when dropna=false Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#14246 by OXPHOS was closed Apr 26, 2017 Loading…
3 of 4 tasks
1
29
BUG: IntervalIndex is_non_overlapping_monotonic is incorrect when endpoints are closed on both sides Bug Interval Interval data type
#16588 by alysivji was closed Sep 9, 2017 Loading…
4 tasks done
1
11
BUG: Series ops with a rhs of a Timestamp raising exception (#2898) Bug Enhancement
#2899 by jreback was merged Feb 23, 2013 Loading…
9
BUG: read_excel with squeeze=True Bug IO Excel read_excel, to_excel
#12184 by chris-b1 was closed Jan 30, 2016 Loading…
1
3
BUG: Fix subtraction with timezone Series Bug Timezones Timezone data dtype
#12302 by gfyoung was closed Feb 12, 2016 Loading…
4
BUG: GH10355 groupby std() no longer sqrts grouping cols Bug Groupby
#11300 by henrystokeley was closed Nov 5, 2015 Loading…
1
7
FIX: pivot_table dropna=False drops index level names Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#12327 by Winand was closed Apr 14, 2016 Loading…
1
9
BUG: fix pivot_table with multiple aggregations per column and margins=True #12210 Bug
#16721 by waynebliu was closed Jun 29, 2017 Loading…
2 of 4 tasks
1
2
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