Consult:
1, install pyhook:
E: \ pywx> PIP install pyHook 1.5.1 - cp37 - cp37m - win_amd64. WHL
Processing e: \ pywx \ pyhook 1.5.1 - cp37 - cp37m - win_amd64. WHL
Installing collected packages: pyHook
Successfully installed pyHook - 1.5.1
2, pywin32-227. The win - amd64 - py3.7. Exe, directly click install.

After the installation:
The import pyHook
The import phthoncom

What is always reference, can you tell me the reason,