fix coverage settings

[run]

branch = True

source = donut

[report]

# Regexes for lines to exclude from consideration

exclude_lines =

    # Have to re-enable the standard pragma

    pragma: no cover

    # Don't complain about missing debug-only code:

    if self\.debug

    # Don't complain if tests don't hit defensive assertion code:

    raise AssertionError

    raise NotImplementedError

    # Don't complain if non-runnable code isn't run:

    if 0:

    if __name__ == .__main__.:

[run]

ignore_errors = True

omit =

    # test code need not coverage statistics

    tests/*

    setup.py