No prompt running memory profiler against pytest #355

I'm trying to run memory_profiler against pytest but no prompt or logging is shown (while it does record a dat file for the plot).

I tried:

python -m memory_profiler pytest
mprof run pytest 
mprof run python -m pytest
pytest

with @profile, with pytest -s to avoid prompt capture or

fp = open('memory_profiler.log', 'w+')

@profile(stream=fp)

I added the decorator, either in a single test or in a function being used by that single test.

Relevant information:

• python 3.8.9
• pytest 6.2.5
• memory-profile 0.60.0
• inside a virtualenv

Any suggestions?
Thanks for any help