exclude_paths doesn't do what you expect

[boxed]

https://github.com/henrikh/mutmut-exclude-path for a reproduction scenario.

Basically paths_to_exclude=some/folder/ should be understood correctly.

[M3ssman]

@boxed I guess this happens by the way traversing with os.walk is done.

If you comsume subdirs like in https://github.com/boxed/mutmut/blob/c59fc4b99f03abfe409ba8c0f90e4bbd8a9d574a/mutmut/init.py#L1223 you have only B , not main/B.

Give this a try:

[mutmut]
paths_to_mutate=main
paths_to_exclude=B
runner=python -m unittest discover tests --failfast