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

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)

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. Thank you!

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Run it from the shell like this:

python script.py arg1 arg2 arg3

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