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Pull requests: pandas-dev/pandas
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Fixing issue with distinguish_nan_and_na and read_csv()
#65250
opened Apr 15, 2026 by
Willow-Zero
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4 of 7 tasks
BUG: _lexsort_depth incorrect when MultiIndex levels are not monotonically sorted
Bug
Indexing
Related to indexing on series/frames, not to indexes themselves
MultiIndex
#65248
opened Apr 15, 2026 by
jbrockmendel
Member
•
Draft
4 tasks
BUG: DataFrame.loc with list of partial tuple keys on MultiIndex
Bug
#65247
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
2 tasks done
BUG: improve error message for slice_locs with NaN in index
Bug
#65246
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
2 tasks
BUG: MultiIndex slicing with datetime.date raises TypeError
Bug
#65245
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
2 tasks done
BUG: fix use-after-free in PyObjectHashTable
Bug
#65244
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
4 tasks done
BUG: MultiIndex indexing silently drops labels present in level but missing in context
Bug
#65243
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
3 tasks done
BUG: DataFrame.loc setitem with partial MultiIndex key and DataFrame value
Bug
#65242
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
5 tasks done
BUG: DataFrame.loc setitem with list-like value on single-column EA DataFrame
Bug
#65241
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
3 tasks done
BUG: DataFrame.at/iat fail to store list-like values in a single cell
Bug
#65240
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
3 tasks done
BUG: fix .loc with tuple key on MultiIndex with IntervalIndex level
Bug
#65239
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
3 tasks done
BUG: fix loc setitem with partial MultiIndex column key producing NaN
Bug
#65238
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
7 tasks done
4
BUG: DataFrame.loc setitem with MultiIndex columns and partial key introduces NaN
Bug
#65236
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
3 tasks done
BUG: MultiIndex.get_loc returns scalar for unique key in non-unique index
Bug
#65234
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
5 tasks done
BUG: DataFrame.loc setitem expands index when no columns
Bug
#65235
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
5 tasks done
REF: stop DatetimeArray/TimedeltaArray methods from reading self.freq
Refactor
Internal refactoring of code
#65233
opened Apr 14, 2026 by
jbrockmendel
Member
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7 tasks done
TST: add tests for .loc setitem with non-unique string index
#65232
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
2 tasks done
ENH: Make BaseMaskedArray methods 2D-compatible
Enhancement
#65231
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
3 tasks done
BUG: MultiIndex.loc raises KeyError for string keys on numeric levels
Bug
#65230
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
4 tasks done
BUG: DataFrame.loc preserves original index name when key is an Index
Bug
#65229
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
3 tasks done
CI: set PKG_CONFIG_PATH to fix broken system Python headers
#65228
opened Apr 14, 2026 by
jbrockmendel
Member
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1 task done
REF: consolidate _constructor_sliced_from_mgr call sites into _ixs
Refactor
Internal refactoring of code
#65225
opened Apr 14, 2026 by
jbrockmendel
Member
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5 tasks done
TST: add test for .at with incompatible Decimal type
#65224
opened Apr 14, 2026 by
jbrockmendel
Member
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ENH: make option_context thread-safe via contextvars
Multithreading
Parallelism in pandas
#65222
opened Apr 14, 2026 by
jbrockmendel
Member
•
Draft
5 tasks done
BUG: DataFrame.at raises TypeError with partial date string on MultiIndex
Bug
#65221
opened Apr 14, 2026 by
jbrockmendel
Member
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3 tasks done
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