### What needs to get done It would be nice to have a `python-extras` keyword for the python plugin that will install the given package with any extras specified. Example: ``` parts: codespell: plugin: python source: https://github.com/codespell-project/codespell source-type: git source-tag: v2.2.6 source-depth: 1 python-extras: - toml ``` would [at the appropriate place](https://github.com/canonical/craft-parts/blob/bd6c687f30dc72346816d7cd0b4ceabc8e530d92/craft_parts/plugins/python_plugin.py#L115) run `pip install -U .[toml]` ### Why it needs to get done Quality of life improvement