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Pull requests: pandas-dev/pandas
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PERF: DataFrame(dict) returns RangeIndex columns when possible Constructors Series/DataFrame/Index/pd.array Constructors Index Related to the Index class or subclasses Performance Memory or execution speed performance
Use memcpy / realloc more effectively in hashtable Performance Memory or execution speed performance
PERF: Avoid np.divmod in maybe_sequence_to_range Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: Allow ensure_index_from_sequence to return RangeIndex Index Related to the Index class or subclasses Performance Memory or execution speed performance
POC: Use khash sets instead of maps for isin Performance Memory or execution speed performance
#53059 by WillAyd was closed Mar 19, 2024 Loading… updated Mar 19, 2024
PERF: Improve performance for astype is view Copy / view semantics Performance Memory or execution speed performance
PERF: RangeIndex.insert maintains RangeIndex when empty Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: Skip _shallow_copy for RangeIndex._join_empty where other is RangeIndex Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: Remove slower short circut checks in RangeIndex__getitem__ Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: Unary methods on RangeIndex returns RangeIndex Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: RangeIndex.argmin/argmax Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: RangeIndex.round returns RangeIndex when possible Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: RangeIndex.take/reindex/join with single/no value returns RangeIndex Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: RangeIndex.__getitem__ with integers return RangeIndex Index Related to the Index class or subclasses Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance
PERF: Return RangeIndex columns instead of Index for str.partition with ArrowDtype Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: Categorical(range).categories returns RangeIndex instead of Index Categorical Categorical Data Type Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF/CLN: Preserve Related to the Index class or subclasses Performance Memory or execution speed performance
concat(keys=range) RangeIndex level in the result Clean Index PERF: DataFrame(ndarray) constructor ensure to copy to column-major layout Copy / view semantics Performance Memory or execution speed performance
PERF: Return RangeIndex from RangeIndex.reindex when possible Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: Return RangeIndex from RangeIndex.join when possible Index Related to the Index class or subclasses Performance Memory or execution speed performance
PERF: Return a RangeIndex from __getitem__ with a bool mask when possible Index Related to the Index class or subclasses Performance Memory or execution speed performance
ENH: Do unique check before computing indexer in reindex Indexing Related to indexing on series/frames, not to indexes themselves Performance Memory or execution speed performance
PERF: Improve performance for fillna with datetime Datetime Datetime data dtype Performance Memory or execution speed performance
PERF: Avoid Series constructor in DataFrame(dict(...), columns=) DataFrame DataFrame data structure Performance Memory or execution speed performance
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