Skip memray on pypy

[ecerulm]

Currently nox -rs test-pypy can fail with

nox > python -m coverage run --parallel-mode -m pytest --memray --hide-memray-summary -v -ra --color=auto --tb=native --durations=10 --sict-config --strict-markers test/
ERROR: usage: __main__.py [options] [file_or_dir] [file_or_dir] [...]
__main__.py: error: unrecognized arguments: --memray --hide-memray-summary

the cause is that although the code in noxfile.py tries to check if memray is supported, it does the check on the python interpreter that executes nox, not on the python interpreter used inside the session.

This patch disable memray if session.python == "pypy".

Alternatively, we could use session.run() to write the sys.implementation.name, etc to a file and read that from noxfile.py , so that noxfile.py could use the information from the actual python interpreter for the decision, but IMHO it's way more complicated for little benefit

[sethmlarson]

Thanks for this, can you run nox -rs format locally and make sure it passes, lint job is failing on CI.

[pquentin]

Thanks! Nearly there.