Black removes the burden of manual code formatting and is by now
considered the standard Python formatting tool.
https://black.readthedocs.io/en/stable/
Format all Python code with black.
GitHub linting action is updated to ensure all files are formatted with
Black.
Signed-off-by: Piotr Husiatyński <phusiatynski@gmail.com>
Installation with setup.py fails on missing yaml package, which should
be installed by "install_requires" but this also does not work because
podman_compose.__version__ also needs yaml.
Put all the Python dependencies into separate files:
- requirements.txt
- test-requirements.txt
