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Pull requests: pandas-dev/pandas
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DOC: clarifying min_itemsize in HDFStore.append and HDFStore.put documentation
#64583
opened Mar 13, 2026 by
K0Stek122
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7 tasks done
PERF: [POC] compute skew and kurtosis with multithreading
#64582
opened Mar 13, 2026 by
Alvaro-Kothe
•
Draft
BUG: fix ArrowExtensionArray construction with NaN in string data
#64581
opened Mar 13, 2026 by
wavebyrd
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TST: adjust tests for the deprecation default Related to the Index class or subclasses
Testing
pandas testing functions or related to the test suite
exact in assert_index_equal from "equiv" to True
Index
#64580
opened Mar 13, 2026 by
natmokval
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BUG: use our arrow->pandas conversion utility in read_iceberg (correct string dtype)
Arrow
pyarrow functionality
PERF: use np.unique instead of pd.unique in _FrequencyInferer
#64575
opened Mar 13, 2026 by
jbrockmendel
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TYP: Add type annotations to Index (pandas/core/indexes/base.py)
#64573
opened Mar 13, 2026 by
jbrockmendel
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3 of 5 tasks
BUG: Fix bug (#64524) where
read_html parses a nested table incorrectly when using html5lib or bs4 flavors
#64571
opened Mar 12, 2026 by
fumoboy007
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6 of 7 tasks
BUG: Fix HDFStore.put with StringDtype columns and compression (#64180)
#64569
opened Mar 12, 2026 by
alubbock
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6 of 7 tasks
BUG: raising clear error for hist/box with duplicate column names
#64567
opened Mar 12, 2026 by
mserdukoff
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4 of 7 tasks
TYP: add type annotations for dynamically-inherited DatetimeIndex attributes
#64562
opened Mar 12, 2026 by
tuhinsharma121
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1 task done
TYP: Allow type[csv.Dialect] to be passed to read_csv()
#64559
opened Mar 12, 2026 by
denisw
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4 of 7 tasks
PERF: vectorize year/month extraction for object-dtype datetimes in Stata writer
#64556
opened Mar 12, 2026 by
tuhinsharma121
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1 task done
TST: remove is_ci_environment antipattern
#64548
opened Mar 12, 2026 by
jbrockmendel
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1 of 4 tasks
PERF: Optimize khash usage and clean up dead deletion code
#64543
opened Mar 12, 2026 by
jbrockmendel
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4 tasks done
ENH: Add OpenMP detection for cython.prange support
#64541
opened Mar 11, 2026 by
jbrockmendel
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2 tasks done
BUG: Fix CSV C tokenizer infinite loop with embedded \r + space
#64540
opened Mar 11, 2026 by
jbrockmendel
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4 tasks done
ENH: Plotting support for ExtensionArrays
#64535
opened Mar 11, 2026 by
Julian-Harbeck
•
Draft
3 of 7 tasks
TST: add regression test for GH#19905 DataFrame.update with differing index types
#64533
opened Mar 11, 2026 by
prodduturisindhurdy
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2 of 6 tasks
PERF: fix slow python loop in validation for ArrowStringArray setitem value (_maybe_convert_setitem_value)
Arrow
pyarrow functionality
Performance
Memory or execution speed performance
Strings
String extension data type and string data
PERF: Use SIMD for read_csv C tokenizer
IO CSV
read_csv, to_csv
Performance
Memory or execution speed performance
#64515
opened Mar 11, 2026 by
jbrockmendel
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PERF: Use lookup table for fast bulk scanning in CSV tokenizer
IO CSV
read_csv, to_csv
Performance
Memory or execution speed performance
#64513
opened Mar 10, 2026 by
jbrockmendel
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2 tasks done
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