how to run a program from python script code example

Example 1: run python file using python code

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

Example 2: run python program from command line

# press [windows] + [R] (on windows only)
# use the command : cd/the_way_of_your_program
# and now use this command :

py the_name_of_your_program.py 

# don't forget to write the extension (py for python) 
# at the end of your program name

Example 3: python run javascript

import js2py

js = """
function escramble_758(){
var a,b,c
a='+1 '
b='84-'
a+='425-'
b+='7450'
c='9'
document.write(a+c+b)
}
escramble_758()
""".replace("document.write", "return ")

result = js2py.eval_js(js)  # executing JavaScript and converting the result to python string

Example 4: how to execute a python script

C:\Python27\python.exe C:\Users\Username\Desktop\my_python_script.py