One 、 First of all to enter python3 Command execution
Command tool input :
python3
Two 、 perform import Introduce the extension and see where it is path
Command tool input :
import sys
sys.path
3、 ... and 、 Copy out the actual directory and jump to it
The actual path should be ：cd /Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.7
OK, At this time we found the actual python3 Catalog .
