I have been trying to install SciPy from PyCharm for some time. I have tried using the in-built package installer, however it would fail. Also I tried installing as a .whl and running as
Pip install scipy-1.7.1-cp37-cp37m-macosx_10_9_x86_64.whl
and that would fail too. Currently unsure where to move forward from here. I use Windows 10 and am currently using Python version 3.10 64 bit. The error message that is coming up is
ERROR: scipy-1.7.1-cp37-cp37m-macosx_10_9_x86_64.whl is not a supported wheel on this platform.
This may be caused because Scipy is not supporting Python 3.10 (yet). scipy-1.7.1-cp37-cp37m-macosx_10_9_x86_64.whl is the first wheel that appears on PyPI. I suppose that PyCharm got confused, and tried to find a compatible wheel.
You have to wait for a compatible release from the Scipy developers (seems like they are waiting for some issues to be resolved). In the meantime, you can try a lower Python version (what about Python 3.9?)