pandas
https://github.com/pydata/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
- BUG: Behavior change in pandas 3.x with `Series.resample` and `closed="right", how="right"`
- PERF: `to_numpy` is >3 orders of magnitude slower on tz aware datetimes
- BUG: `np.isnan` raises on pyarrow dtypes
- BUG: HDF5 file stores hardcoded pandas version "0.15.2" instead of actual pandas version
- BUG: fix `DataFrame.__setitem__` with 2D object arrays
- BUG: Inconsistency between `Series[bool].__truediv__(list[bool])` and `Series[bool].truediv(list[bool])`
- BUG: read_excel with pyarrow backend does not infer correct data type with mixed values inside column
- BUG: missing value after comparison
- BUG: ExponentialMovingWindow.agg/aggregate fails when passing a callable
- PERF: Arrow dtypes are much slower than Numpy for DataFrame.apply
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