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Pull requests: pandas-dev/pandas
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PERF: speed up to_offset string parsing
Performance
Memory or execution speed performance
#65395
opened Apr 28, 2026 by
jbrockmendel
Member
•
Draft
7 of 12 tasks
CLN: drop stale FIXME in ObjectStringArrayMixin._str_map
#65394
opened Apr 28, 2026 by
jbrockmendel
Member
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1 task done
CLN: remove stale cython3 conditional-nogil TODO in rank_sorted_1d
#65392
opened Apr 28, 2026 by
jbrockmendel
Member
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1 task
BUG: infer_dtype treats pd.NA as a generic null in TemporalValidator
#65391
opened Apr 28, 2026 by
jbrockmendel
Member
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4 tasks done
CLN: remove _offset_map cache in offsets.pyx
#65390
opened Apr 28, 2026 by
jbrockmendel
Member
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3 tasks done
BUG: Timedelta.total_seconds drops sub-microsecond nanosecond component
Bug
#65389
opened Apr 28, 2026 by
jbrockmendel
Member
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2 tasks done
PERF: Speed up Timedelta.total_seconds
#65388
opened Apr 28, 2026 by
jbrockmendel
Member
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2 tasks done
CLN: point cython3 TODOs at upstream cython#2485
#65387
opened Apr 28, 2026 by
jbrockmendel
Member
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1 task done
REF: cimport npy_datetimestruct and NPY_DATETIMEUNIT directly from numpy
#65386
opened Apr 28, 2026 by
jbrockmendel
Member
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4 tasks done
DOC: drop stale "experimental" notes and fix tab-completion list
Docs
#65385
opened Apr 28, 2026 by
jbrockmendel
Member
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2 tasks
REF: standardize Arrow validation with _validate_scalar/_validate_setitem_value
Refactor
Internal refactoring of code
#65384
opened Apr 28, 2026 by
jbrockmendel
Member
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4 tasks done
TYP: tighten Timestamp/Timedelta round/floor/ceil return types
#65383
opened Apr 28, 2026 by
jbrockmendel
Member
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3 of 4 tasks
BUG: nansem with mask + skipna=False + axis returns scalar nan instead of array
#65378
opened Apr 27, 2026 by
Abineshabee
Contributor
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BUG: Fix Behavior Change from #64366 Regarding NaN Handling With Mask
#65372
opened Apr 26, 2026 by
Alvaro-Kothe
Member
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DOC: fix to_numeric docstring - add Index/scalar return types, fix dtype_backend description
#65371
opened Apr 26, 2026 by
Nikhil-jaiswal007
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3 of 7 tasks
BUG: str.replace hangs indefinitely on empty pattern with PyArrow backend
#65370
opened Apr 26, 2026 by
Scolliq
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5 of 7 tasks
DOC: Document pyarrow vs python string storage differences (#63105)
#65368
opened Apr 25, 2026 by
Manjugadupudi
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Test: Add regression test for DataFrame.sum() with negative values and NaN
#65367
opened Apr 25, 2026 by
aastha2212
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BUG: select_dtypes ExtensionDtype handling (GH#40234, GH#59888)
Bug
#65366
opened Apr 25, 2026 by
jbrockmendel
Member
•
Draft
4 tasks done
PERF: speed up read_sas string columns
IO SAS
SAS: read_sas
Performance
Memory or execution speed performance
#65364
opened Apr 24, 2026 by
jbrockmendel
Member
•
Draft
3 of 4 tasks
PERF: speed up read_sas for full-precision numeric columns
IO SAS
SAS: read_sas
Performance
Memory or execution speed performance
#65363
opened Apr 24, 2026 by
jbrockmendel
Member
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1 of 2 tasks
BUG: fixed inconsistency in the behaviour of DatetimeIndex.is_year_start on the frequency "BYS"
#65362
opened Apr 24, 2026 by
harrywzl
Contributor
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4 of 7 tasks
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