coverage.py: exclude files

You can omit modules with the --omit flag. It takes a comma-separated list of path prefixes. So for example:

coverage run my_program.py
coverage report --omit=path/to/3rdparty

Omitting some files worked for me using coverage API. Well it is the same kind what Ned suggested.

Here it is how I did it:

cov = coverage.coverage(omit='/usr/lib/python2.6/site-packages/*')

In addition to the options in the other answers, you can also configure the ignored files via setup.cfg:

[coverage:run]
omit =
    some/directory/*
    debug_*.py

See the documentation for details.