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: pd.concat doesn't preserve categorical dtypes
- PERF: parallelize libjoin calls
- BUG: can't round-trip non-nano Timestamp
- ENH: Include `df.attrs` in `to_json` output
- ENH: Change ExtensionOpsMixin behaviour to not add new operator method if one is already defined on the ExtensionArray class
- BUG: accessing `.dtypes` in a subclass constructor with large frames causes infinite loop
- Proper support of nullable dtypes as the Categorical dtype
- BUG: JSON serialization with orient split fails roundtrip with MultiIndex
- CLN: Use dedup_names in all instances where duplicate column names are renamed
- BUG: assign with apply over axis=1 sometimes fails when the DataFrame has zero rows
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