Pandas Cython 3.0 Checklist

Collecting TODOs for once we bump to cython3:[x] use conditional nogil e.g. here[x] change labels.shape[0] -> len(lab...

Pandas BUG: ArrowStringArray.__setitem__ breaks views

arr = pd.array(['foo', 'bar'], dtype='string[pyarrow]')arr2 = arr[:]arr2[0] = 'baz'>>> arr<ArrowStringArray&...

Pandas ENH: PyPy Support

Tracker for getting PyPy support- [ ] Add PyPy wheels on MacPython/pandas-wheels and get them on PyPI(we have them alrea...

Pandas Roadmap page has numbered-only list when should be a mix of numbered and unnumbered

about / roadmap page in the website shows a numbered list of 17 items and this doesn't seem to be the expected result by...

Pandas BUG: incorrect handling of line breaks in OdsWriter

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas Calling pd.PeriodIndex constructor on pd.Index cannot infer frequency, while first calling pd.DateTimeIndex on pd.Index and calling .to_period() does work

I have the following pd.Index: Index(['2021-01-01', '2021-02-01', '2021-03-01', '2021-04-01', '2021-05-01', '2021-...

Pandas ENH: Extending EAs

On a call yesterday with some of the cuDF maintainers, the question came up of why they haven't implemented an Extension...

Pandas ENH: Inform on row & column of failed type conversion when parsing CSV files

Feature Type[ ] Adding new functionality to pandas[X] Changing existing functionality in pandas[ ] Removing existing fun...

Pandas BUG: Compatibility Issues of Numpy Methods with pd.NA in Styler.bar

In PR #56341 , we've identified a compatibility issue in Styler.bar where numpy methods fail to properly handle pd.NA. R...

Pandas DOC: Fix docstring validation errors for pandas.core.groupby

Parent Issue: #58063pandas has a script for validating docstrings:https://github.com/pandas-dev/pandas/blob/6a7685faf104...

Pandas Writing data to mysql database using df.to_sql method gives exception

In my airflow project i am trying to load data to mysql database using df.to_mysql method but it gives me exceptionAttri...

Pandas ENH: access arrow-backed map as a python dictionary

Feature Type[x] Adding new functionality to pandas[x] Changing existing functionality in pandas[ ] Removing existing fun...

Pandas ENH: Adding hint to to_sql

Feature Type[ ] Adding new functionality to pandas[x] Changing existing functionality in pandas[ ] Removing existing fun...

Pandas BUG: to_sql does gives incorrect column name for index when callable passed in to method

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: Difference between calamine and openpyxl readers - columns with mixed data types

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: SQL connection

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas ENH: Add table prefixes to to_sql method

Feature Type[X] Adding new functionality to pandas[ ] Changing existing functionality in pandas[ ] Removing existing fun...

Pandas ENH: pd.to_sql(upsert=True, upsert_on_columns=['game_id'])

Feature Type[X] Adding new functionality to pandas[X] Changing existing functionality in pandas[ ] Removing existing fun...

Pandas BUG: to_sql does not populate index column with a value when using the mssql+pyodbc engine

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: groupby.first() with None values fills None value with next row

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...
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