Is it possible to do coverage -j8 or similar? Cannot find any documentation on this. Coverage takes so long on the tests...

I checked https://docs.python.org/devguide/coverage.html

The ``-j`` arguments isn't present for coverage from what I know.

What you can do is build coverage's C extension. That results in a pretty significant change in overall execution time. 

For information about coverage.py you should also look in the docs for it; you can forward any questions about its usage from there (see: http://coverage.readthedocs.io/en/coverage-4.2/#getting-help)

I suggest this issue be closed as it isn't really an omission, I don't think we should expect the devguide to document *all* of coverage's options. That's what its dedicated docs are for.

Agree