Error message from pip
File "/private/var/folders/98/8sv5pq656v1djq211lns_94r0000gn/T/pip-build-env-fto5icac/overlay/lib/pypy3.9/site-packages/setuptools/_distutils/unixccompiler.py", line 268, in link
linker = (
TypeError: 'NoneType' object is not subscriptable (key slice(None, None, None))
[end of output]