The instructions for starting coverage.py automatically
includes creating a .pth file with the contents:
import coverage; coverage.process_startup()
The project only contains this .pth file so you can easilly have this enabled via a pip install. The wheel files generated are platform and python specific due to the limitations of wheel files, where the relative directory for site-packages needs to be determined at wheel building time, not install time. The directory is dependent on the version of python and the platform you are on.