nosetests parallel testing doesn't work

Question

My test suite has a lot of tests. I normally do nosetests --exe, which takes a while. I discovered nose has parallel testing, so I tried nosetests --exe --processes=4, but nothing happens. I don't get the ...E.F. progress bar or any messages at all.

Here is what happens when I use --verbosity=3

source parcel_env/bin/activate && \
    nosetests --verbosity=3 --processes=4
nose.config: INFO: Ignoring files matching ['^\\.', '^_', '^setup\\.py$']