But it's typical to override this command to support other test frameworks (like py.test). It's only setuptools' built-in test command that does anything explicitly with the test_requires setup ...

Take control of multiple Python installations in Windows with the py launcher, available as part of a standard Python installation.

If you've read a fair amount of Python code, then you've probably seen this "__init__.py" file pop up quite a few times. It's especially common in larger Python projects. I'm going to breakdown ...