cli: refactor nested argparse argument groups #4651
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- Use a custom mapping of parent->child argument group relations instead of calling `group.add_argument_group()` for creating a tree structure of argument groups (deprecated in Python 3.11) - Override `parser.add_argument_group()` and add the `parent` keyword for being able to have nested argument group defintions - Update custom `--help` format output - Update the argparser Sphinx extension - Fix tests
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- Use a custom mapping of parent->child argument group relations instead of calling `group.add_argument_group()` for creating a tree structure of argument groups (deprecated in Python 3.11) - Override `parser.add_argument_group()` and add the `parent` keyword for being able to have nested argument group defintions - Update custom `--help` format output - Update the argparser Sphinx extension - Fix tests
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instead of calling
group.add_argument_group()for creatinga tree structure of argument groups (deprecated in Python 3.11)
parser.add_argument_group()and add theparentkeywordargument to nested group defintions
--helpformat outputResolves #4648
Help text stays the same, and so do the docs (see the preview build).
$ diff \ <(~/venv/streamlink-310/bin/streamlink --help) \ <(~/venv/streamlink-311/bin/streamlink --help) $ echo $? 0