pandas-dev/pandas: 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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pandas's Language Statistics

Star history of pandas
Issue history of pandas

pandas Recent Issues

Issue Title State Comments Created Date Updated Date Closed Date
DEPR: float/int(Series[single_element])? open 0 2023-02-01 2023-01-25 -
BUG: apply/agg with dictlike and non-unique columns open 1 2023-02-01 2023-01-25 -
DOC: GroupBy.rolling() not in docs open 0 2023-01-31 2023-01-25 -
ENH: Native conditionals (if, elif, elif, else like np.select) open 1 2023-01-31 2023-01-25 -
BUG: Cannot connect to sql open 1 2023-01-31 2023-01-25 -
BUG: qcut does not create bins when values contain np.inf open 1 2023-01-31 2023-01-25 -
BUG: InvalidOperation decimal.DivisionImpossible in to_datetime with errors coerce open 0 2023-01-31 2023-01-25 -
STYLE replace isort with ruff? closed 2 2023-01-31 2023-01-25 2023-01-31
BUG: groupby.std with no numeric columns and numeric_only=True raises open 0 2023-01-31 2023-01-25 -
PERF: cache sorted data in GroupBy? open 0 2023-01-31 2023-01-25 -
BUG: Setting `CategoricalDtype` categories as string objects nulls out data open 2 2023-01-30 2023-01-25 -
DOC: Remove versionadded/versionchanged up to 1.5.0 open 5 2023-01-30 2023-01-25 -
DOC: df.groupby('A') is just syntactic sugar for df.groupby(df['A']) closed 5 2023-01-30 2023-01-25 2023-01-31
BUG: ObjectNotExecutableError reading from MySQL with read_sql and SQL string after Sqlalchemy 2.0.0 release open 1 2023-01-30 2023-01-25 -
BUG: can't round-trip non-nano Timestamp open 5 2023-01-30 2023-01-25 -
BUG: DataFrame.stack() sometimes changes dtype from float32 to float64 open 0 2023-01-30 2023-01-25 -
BUG: Indexing with pd.Float(32|64)Dtype indexes is different than with numpy float indexes open 0 2023-01-29 2023-01-25 -
BUG: aggregations.pyx importing signbit() and sqrt() open 0 2023-01-28 2023-01-25 -
DEPR: GroupBy.cumsum etc with axis=1 open 1 2023-01-28 2023-01-25 -
DEPR: GroupBy.dtypes open 1 2023-01-28 2023-01-25 -
BUG: _validate_setitem_value fails to raise for PandasArray open 0 2023-01-28 2023-01-25 -
BUG: >M8[ns] series from >M8[ns] numpy array fails on little endian system and vice versa open 2 2023-01-28 2023-01-25 -
BUG: converting to datetime with unit=D, unit=M, or unit=Y fails silently (regression) open 5 2023-01-27 2023-01-25 -
BUG: read_csv() changed the integer data to 1 open 1 2023-01-27 2023-01-25 -
BUG: odd error message when constructing non-nano date_Range without leading zero open 0 2023-01-27 2023-01-25 -
BUG: can't resample with non-nano dateindex, out-of-nanosecond-bounds open 3 2023-01-27 2023-01-25 -
BUILD: can't install pandas open 4 2023-01-27 2023-01-25 -
BUG: Series.take needs to validate axis open 2 2023-01-27 2023-01-25 -
Include NumericIndex at top level and document it for version 2.0 open 5 2023-01-27 2023-01-25 -
WARN read_table with infer_datetime_format doesn't show FutureWarning closed 11 2023-01-27 2023-01-25 2023-01-30
BUG: `replace` is changing the order of ordered categories open 1 2023-01-27 2023-01-25 -
BUG: SQLAlchemy 2.0.0 creates incompatibility with Pandas read_sql (fails to execute) closed 3 2023-01-27 2023-01-25 2023-01-27
Groupby - Apply function raising TypeError: incompatible index of inserted column with frame index open 0 2023-01-27 2023-01-25 -
ENH: Include `df.attrs` in `to_json` output open 0 2023-01-27 2023-01-25 -
BUG: Dtype conversion in arithmetic with scalars for arrow ea open 1 2023-01-27 2023-01-25 -
BUG: `PeriodIndex` cannot parse dates out of nanoseconds bounds open 0 2023-01-26 2023-01-25 -
BUG: `sparse.to_coo()` with categorical multiindex gives `iterators.c:185: bad argument to internal function` closed 0 2023-01-26 2023-01-31 2023-01-30
BUG: A trivial C++ module crashes if you import it after pandas open 0 2023-01-26 2023-01-24 -
BUG: GroupBy.idxmin/idxmax returns wrong dtype on empty Series/DataFrame open 1 2023-01-26 2023-01-24 -
BUG: df.to_excel() makes some default formatting open 1 2023-01-26 2023-01-24 -
PERF: to_dict('list') method slow open 2 2023-01-26 2023-01-24 -
BUG: .mode with pyarrow dtypes ignores dropna open 0 2023-01-26 2023-01-31 -
Pandas `groupby(...).apply(f)` amplifies TypeError exceptions. open 2 2023-01-25 2023-01-24 -
BUG: Removed too much from the MSVC workaround open 0 2023-01-25 2023-01-24 -
DEPR: *args, **kwargs on resample methods open 2 2023-01-25 2023-01-23 -
PERF: 'Catgorical.from_codes' slower than necessary for large datasets open 0 2023-01-25 2023-01-23 -
BUG: DatetimeIndex() constructor with mixed timezones gives confusing TypeError open 0 2023-01-25 2023-02-01 -
API allow for `format='mixed'` in to_datetime open 0 2023-01-25 2023-01-23 -
BUG: `DataFrame.convert_dtypes()` converting `object` to `pd.ArrowDtype` instead of `pd.StringDtype` open 0 2023-01-25 2023-02-01 -
BUG: `object`s not converted in `DataFrame.convert_dtypes()` on empty `DataFrame` closed 2 2023-01-25 2023-01-23 2023-01-27