how to run py in terminal code example

Example 1: run python file using python code

exec(open('file.py').read())

Example 2: python how to run terminal command

#By Uku Loskit

import os
os.system("ls -l")

Example 3: how to run python in terminal

#For Python 3:
$ python3 helloworld.py
#For Python 2:
$ python helloworld.py