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3,272 Open 18,532 Closed
3,272 Open 18,532 Closed
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BUG: Wrong result after comparison SparseArray with arrays Bug Needs Triage
#45284 opened Jan 9, 2022 by bdrum
3 tasks done
PERF: Memory leak with pandas.Series.str.replace() Needs Triage Performance
#45277 opened Jan 8, 2022 by ErikinBC
3 tasks done
2
BUG: In Series all null-values are printed as NaN Bug Output-Formatting
#45263 opened Jan 8, 2022 by realead
3 tasks done
Contributions Welcome
1
2
PERF: 1.4.0rc1 Execution time of pd.read_sql increased from seconds to minutes IO SQL Needs Triage Performance Regression
#45260 opened Jan 8, 2022 by SimoneD89
2 of 3 tasks
1.4
ENH: Allow df.to_sql() to pass dialect kwargs to SQLAlchemy. Enhancement Needs Triage
#45259 opened Jan 8, 2022 by cansjt
ENH: Bring over Microsoft typing stubs as starting point for typing public API Enhancement Typing
#45253 opened Jan 7, 2022 by Dr-Irv
ENH: Add set of tests to type check the public APIs CI Enhancement Testing Typing
#45252 opened Jan 7, 2022 by Dr-Irv
3
BUG: Unexpected behavioral change, NaN support dropped with dispatch_ufunc_with_out Bug Needs Triage
#45249 opened Jan 7, 2022 by DamianBarabonkovQC
3 tasks done
1
BUG: DataFrame.groupby silently ignores as_index=False when aggregating with multiple functions on a single column Bug Needs Triage
#45248 opened Jan 7, 2022 by Demetrio92
2 of 3 tasks
API: Consistency between DataFrame, MultiIndex.to_frame and reset_index
#45245 opened Jan 7, 2022 by johnzangwill
BUG: dataframe transform to dict , then accuracy of column will lost. for example Bug Needs Triage
#45243 opened Jan 7, 2022 by AlitaIcon
3 tasks done
1
BUG: pd.testing.assert_series_equal has problems with ExtensionArray input Bug Needs Triage
#45240 opened Jan 7, 2022 by MichaelTiemannOSC
3 tasks done
2
PERF: DataFrame.duplicated with subset= for 1 column is slower than Series.duplicated Needs Triage Performance
#45236 opened Jan 6, 2022 by victorlin
3 tasks done
2
DOC: Convert code-block to ipython block in io.rst Docs IO CSV
#45235 opened Jan 6, 2022 by mroeschke
1 task done
BUG: 1.4.0rc1 Error vectorizing grouping aggregation on empty dataframe with object column Bug Groupby
#45231 opened Jan 6, 2022 by TheNeuralBit
2 of 3 tasks
1.4
1
@rhshadrach
2
BUG: 1.4.0rc1 AssertionError when reset_index drops all indexes except for an empty RangeIndex. Bug Reshaping
#45230 opened Jan 6, 2022 by TheNeuralBit
2 of 3 tasks
1.4
1
BUG: index level of Series dropped if not containing >1 unique value in numeric operations in non-commutative way Bug Needs Triage
#45224 opened Jan 6, 2022 by brandonskinner-8451
2 of 3 tasks
RLS: 1.5 Release
#45223 opened Jan 6, 2022 by simonjayhawkins 1.5
BUG: value counts with mixed NaNs is oddly rendering Bug
#45222 opened Jan 6, 2022 by jreback 1.4
1
2
REF: share Categorical._repr_categories and CategoricalIndex._format_attrs Bug Needs Triage
#45218 opened Jan 6, 2022 by jbrockmendel
BUG: groupby apply on single group transposes series output Bug Needs Triage
#45187 opened Jan 4, 2022 by seanv507
2 of 3 tasks
CI: Numpy 1.22 caused CI to fail Blocker CI Dependencies numba Typing
#45182 opened Jan 4, 2022 by phofl 1.4
@phofl
5
CI: dev requirements version inconsistencies CI Dependencies
#45178 opened Jan 3, 2022 by attack68
3 tasks done
4
BUG: DataFrame.to_string() - customer formatter ***not*** called for all values in column Bug Needs Triage
#45177 opened Jan 3, 2022 by DanielGoldfarb
3 tasks done
5
API: series_with_int64index[i:j] should be label-based API - Consistency Indexing Needs Discussion
#45162 opened Jan 2, 2022 by jbrockmendel
2
ProTip! Adding no:label will show everything without a label.