ValueError: not enough values to unpack (expected 4, got 1)

argv variable contains command line arguments. In your code you expected 4 arguments, but got only 1 (first argument always script name). You could configure arguments in pycharm. Go to Run -> Edit Configurations. Then create a new python configuration. And there you could specify Script parameters field. Or you could run your script from command line as mentioned by dnit13.

Run it from the shell like this:

python script.py arg1 arg2 arg3