pandas
https://github.com/pandas-dev/pandas
Python
Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more
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- Issues
- Refactor source file inspection logic in conf.py
- PERF: fast-path factorization for monotonic groupby keys
- PERF: speed up partial key indexing on MultiIndex Series
- PERF: use array indexing instead of hash lookup in recode_for_groupby
- BUG: fix PeriodIndex resample aggregation for superperiod and same-frequency cases
- PERF: Speed up DataFrame.apply(axis=1) for ExtensionDtype columns
- ENH: Add union_categories parameter to pd.concat
- PERF: use ufunc.reduceat for sorted groupby aggregations
- BUG: Regression when using `.str[...]` accessor on `ArrowExtensionArray`
- BUG: Fix merge not upcasting datetime64 join key to highest resolution for inner/left joins
- Docs
- Python not yet supported