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Pull requests: pandas-dev/pandas

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Pull requests list

REF: consolidate _constructor_sliced_from_mgr call sites into _ixs Refactor Internal refactoring of code
#65225 opened Apr 14, 2026 by jbrockmendel Member Loading…
5 tasks done
TST: add test for .at with incompatible Decimal type
#65224 opened Apr 14, 2026 by jbrockmendel Member Loading…
1
ENH: make option_context thread-safe via contextvars
#65222 opened Apr 14, 2026 by jbrockmendel Member • Draft
5 tasks done
1
BUG: DataFrame.at raises TypeError with partial date string on MultiIndex Bug
#65221 opened Apr 14, 2026 by jbrockmendel Member Loading…
3 tasks done
1
BUG: DataFrame.agg with list-like funcs reintroduces filtered columns as NaN with numeric_only=True
#65219 opened Apr 13, 2026 by gautamvarmadatla Contributor Loading…
6 of 7 tasks
1
3
TST: Add regression test for read_parquet null batches (#55731)
#65215 opened Apr 13, 2026 by sammy-koch Loading…
6 of 7 tasks
1
ENH: align timedelta fractional seconds in string repr (#57188)
#65212 opened Apr 13, 2026 by berasaikat Contributor Loading…
1
PERF: reduce per-group overhead in groupby.agg with UDFs Performance Memory or execution speed performance
#65211 opened Apr 13, 2026 by jbrockmendel Member • Draft
5 tasks done
1
BUG: loc setitem with duplicate columns and new columns corrupts Data…
#65208 opened Apr 13, 2026 by roeimed0 Contributor Loading…
6 of 7 tasks
1
2
ENH: upsert functionality to DataFrame.to_sql
#65205 opened Apr 13, 2026 by JustinGuese Loading…
4 tasks done
1
BUG: Harden lxml XMLParser to disable XXE entity resolution (#64979)
#65200 opened Apr 13, 2026 by iabhi4 Contributor Loading…
7 tasks done
1
1
PERF: pass how=left to _factorize_keys in _left_join_on_index (#65160)
#65199 opened Apr 13, 2026 by iabhi4 Contributor Loading…
5 tasks done
1
PERF: vectorize _range_from_fields and _assemble_from_unit_mappings Performance Memory or execution speed performance
#65195 opened Apr 12, 2026 by jbrockmendel Member • Draft
5 tasks done
TST: add check_freq to assert_index_equal Testing pandas testing functions or related to the test suite
#65194 opened Apr 12, 2026 by jbrockmendel Member Loading…
4 tasks done
PERF: short-circuit array_equivalent and equals comparisons Performance Memory or execution speed performance
#65192 opened Apr 12, 2026 by jbrockmendel Member • Draft
4 tasks done
1
BUG: improve error message for duplicate columns in pd.melt (GH61475)
#65189 opened Apr 12, 2026 by mriganshu16 Loading…
1
BUG: astype from tz-naive to tz-aware uses tz_localize semantics Bug
#65187 opened Apr 12, 2026 by jbrockmendel Member • Draft
4 tasks done
1
BUG: fix to_csv chunksize producing inconsistent dt64/td64 formatting Bug
#65183 opened Apr 11, 2026 by jbrockmendel Member • Draft
4 tasks done
1
DEPR: to_datetime with integer/float values and format argument Deprecate Functionality to remove in pandas
#65181 opened Apr 11, 2026 by jbrockmendel Member • Draft
5 tasks done
1
TST: add _honors_copy_keyword to extension test base class Testing pandas testing functions or related to the test suite
#65179 opened Apr 11, 2026 by jbrockmendel Member • Draft
1 task done
1
CLN: Remove unnecessary .view(dtype) in nanops and take Clean
#65178 opened Apr 11, 2026 by jbrockmendel Member • Draft
2
TST: add mixed-int-string Index to conftest fixtures Testing pandas testing functions or related to the test suite
#65177 opened Apr 11, 2026 by jbrockmendel Member • Draft
4 tasks done
1
PERF: restore libjoin fastpath for CategoricalIndex intersection/union Performance Memory or execution speed performance
#65176 opened Apr 11, 2026 by jbrockmendel Member Loading…
4 tasks done
REF: remove GeoDataFrame shim and inline _constructor_expanddim_from_mgr Refactor Internal refactoring of code
#65175 opened Apr 11, 2026 by jbrockmendel Member Loading…
3 tasks done
2
REF: IntervalArray _validate_setitem_value delegates to _validate_scalar Refactor Internal refactoring of code
#65174 opened Apr 11, 2026 by jbrockmendel Member • Draft
5 tasks done
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