How to run ios-sim all command through python script

[prasenraj]

can you please help me how to run ios-sim command from python?
ex - ios-sim launch /Users/pp/Desktop/sampleProject.app/ --devicetypeid com.apple.CoreSimulator.SimDeviceType.iPhone-6

but when I try from python - like this
import os

os.system('"ios-sim install /Users/pp/Desktop/sampleProject.app/ --devicetypeid com.apple.CoreSimulator.SimDeviceType.iPhone-6"')

getting error - No such file or directory

please help me