valhalla:

pip install torch==1.7.1+cpu


Ok, I for the second command I get this error:
pip install torch==1.7.0+cpu
ERROR: Could not find a version that satisfies the requirement torch==1.7.0+cpu (from versions: 0.1.2, 0.1.2.post1, 0.1.2.post2, 1.4.0, 1.5.0, 1.5.1, 1.6.0, 1.7.0, 1.7.1)
ERROR: No matching distribution found for torch==1.7.0+cpu
$ python --version
Python 3.8.5