Richard Shadrach

BUG: algorithms.factorize moves null values when sort=False

10

- [x] closes #46584 (Replace xxxx with the Github issue number) - [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature - [x] All [code...

[Feature Request] Periods at the end of sections and args for Google style

2

I'm not aware if there is an official Google style specification, I've always used the [napoleon docs examples](https://sphinxcontrib-napoleon.readthedocs.io/en/latest/example_google.html) as a guide. Based off of those, I've always thought each section...

API: Add DataFrameGroupBy and SeriesGroupBy to the top level API

5

Currently one cannot run `from pandas import DataFrameGroupBy, SeriesGroupBy`. We should add these classes to the top level as they are particularly important for type-hinting in user code. Users shouldn't...

REGR: Performance decrease in factorize

1

- [ ] closes #xxxx (Replace xxxx with the Github issue number) - [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature - [...

CLN: handling of categorical with dropna=False in Grouping._codes_and_uniques

2

#46601 fixed using categorical with dropna=False in groupby by avoiding the categorical-specific logic in Grouping._codes_and_uniques. While this allowed for correct results, it seems better to fix the categorical-specific logic to...

- [ ] closes #xxxx (Replace xxxx with the Github issue number) - [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature - [...

add_marker with usefixtures no longer works with pytest 8.0.0

7

I believe this may be related to https://github.com/pytest-dev/pytest/issues/3664. In pandas, we dynamically add a marker for our doctests so that we don't need `import pandas as pd` and `import numpy...

- [ ] closes #xxxx (Replace xxxx with the GitHub issue number) - [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature - [...

- [x] closes #57192 (Replace xxxx with the GitHub issue number) - [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature - [ ]...

- [x] closes #57315 (Replace xxxx with the GitHub issue number) - [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature - [ ]...