The pytest-runner package is deprecated and its use is discouraged. See:
https://github.com/pytest-dev/pytest-runner/
> pytest-runner depends on deprecated features of setuptools and relies
> on features that break security mechanisms in pip. For example
> 'setup_requires' and 'tests_require' bypass pip --require-hashes. See
> also https://github.com/pypa/setuptools/issues/1684.
>
> It is recommended that you:
>
> - Remove 'pytest-runner' from your 'setup_requires', preferably
> removing the setup_requires option.
> - Remove 'pytest' and any other testing requirements from
> 'tests_require', preferably removing the setup_requires option.
> - Select a tool to bootstrap and then run tests such as tox
Running tests should go through the tox entrypoint.
Similar to the recent adoption of Black. isort is a Python utility to
sort imports alphabetically and automatically separate into sections. By
using isort, contributors can quickly and automatically conform to the
projects style without thinking. Just let the tool do it.
Uses the configuration recommended by the Black to avoid conflicts of
style.
Rewrite TestImageQt.test_deprecated to no rely on import order.
This adds CPPFLAGS to the list of environment variables (currently
CFLAGS and LDFLAGS) searched when looking for includes and library
directories, as CPPFLAGS may also include -I options.
`_find_library_dirs_ldconfig` can return an empty list when `ldconfig` is missing, then `setup.py` can continue guessing library directories.
fixes#3526
Python 3.5's distutils added support for parallel builds, which means
that we don't need to monkeypatch it anymore. But more importantly, this
monkeypatch made build fail (hang in fact) whenever `--parallel` was
passed to `python setup.py build`.
This commit fixes the problem by not applying the monkeypatch on
python 3.5+ and preserve the old behavior (parallel build by default) by
injecting a `parallel` option when it's not specified.
