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

Question

The error is at script, first, second, third = argv. I would like to understand why I am getting the error and how to fix it.

from sys import argv

script, first, second, third = argv
print("The script is called: ", script)
print("The first variable is: ", first)
print("The second variable is: ", second)
print("The third variable is: ", third)

Answer 1

Run it from the shell like this:

python script.py arg1 arg2 arg3

Answer 2

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.