I ran the pip install command given by the machine main website and this error occured:

ERROR: File "setup.py" not found for legacy project micropython-machine from https://files.pythonhosted.org/packages/e1/31/a3282942b3e96881393db406130735913c647f0fc9e07a0d60d7b546b06b/micropython-machine-0.2.tar.gz#sha256=b8747926ee044547c5f5df09b8015977b4137c744800285ee92f307acc477223.

Interestingly, a very similar error occured when I tried installing upip to install machine. (pip install micropython-upip) returned the following error:

ERROR: File "setup.py" not found for legacy project micropython-upip from https://files.pythonhosted.org/packages/29/81/52df27cb7d240190c1d3ddab0c081bd3296bedcce155eed9e7016c4d92f0/micropython-upip-1.2.6.tar.gz#sha256=b9c09fc2b65f877d945142e468e0f25b5f70e9f74e98e0f43ca030bd7f47e87f.