How to determine if Python script was run via command line?

Question

Background

I would like my Python script to pause before exiting using something similar to:

raw_input(\"Press enter to close.\")

but

Answer 1

My solution was to create command line scripts using setuptools. Here are a the relevant parts of myScript.py:

def main(pause_on_error=False):
    if run():
        print("we're good!")
    else:
        print("an error occurred!")
        if pause_on_error:
            raw_input("\nPress Enter to close.")
        sys.exit(1)

def run():
    pass  # run the program here
    return False  # or True if program runs successfully

if __name__ == '__main__':
    main(pause_on_error=True)

And the relevant parts of setup.py:

setup(
entry_points={
        'console_scripts': [
            'myScript = main:main',
        ]
    },
)

Now if I open myScript.py with the Python interpreter (on Windows), the console window waits for the user to press enter if an error occurs. On the command line, if I run 'myScript', the program will never wait for user input before closing.