[Tutor] Calling another script

[Steven D'Aprano]

On Mon, Apr 04, 2011 at 05:10:50AM +0000, tee chwee liong wrote:
> 
> hi,
>  
> i opened a cmd DOS prompt to execute one.py. it works to execute codes from two.py and three.py. yes, you are fight it will not re-execute the module. 
> is there a way to do it? i want after the python script finishes execution will return the control to the DOS prompt instead of leaving as >>>.
> i tried putting sys.exit(). 

Do not confuse importing a script with running a script.

The usual way to run a script is to write it with a main() function, and then call that:

# === myscript.py ===

print("Set up code goes here...")
# this only gets executed once, the FIRST time you import the module


def main():
    print("Running script now!")

if __name__ == '__main__':
    # We've been called from the shell.
    main()



In your other script, you do this:

# === Master script that calls myscript ===

if __name__ == '__main__':
    # Running as a script ourselves.
    import myscript
    myscript.main()





-- 
Steven