after pip successful installed: ModuleNotFoundError
问题 I am trying to install the SimPy module so that I can use it in IDLE. However, everytime I try to import in IDLE, I got an error. I already tried reinstalling Python and Pip and tried to modify the location of the apps. SimPy can be found in the directory of Python 2.7. I'm using python 3.6.1. After I correctly installed simpy in the terminal: pip install simpy Requirement already satisfied: simpy in /Library/Python/2.7/site-packages When I put into IDLE: Import Simpy I got the error: