无法导入SimPy

Question

First of all I searched my problem and didn't find any solution. I imported SimPy in my Python script as "import simpy" and I assured that SimPy installed on my system via pip but nevertheless it couldn't be imported. I also added the picture shows output of pip list and result of my try to run script.

import simpy

def car(env):
    while True:
        print('Start parking at %d' % env.now)
        parking_duration = 5
        yield env.timeout(parking_duration)

        print('Start driving at %d' % env.now)
        trip_duration = 2
        yield env.timeout(trip_duration)

def main():
    env = simpy.Environment()
    env.process(car(env))
    env.run(until=15)

if __name__ == '__main__':
    main()

Terminal output:

Answer 1

Is it possible that you installed it for but run py2?

Try: python3 SimPy.py

Answer 2

You need to rename your script to something else. It shadows the simpy package.