using shell=False with an argument string

You're likely using a version of Python older than 3.7.0; update it to the most recent one available. Otherwise there are other answers in this StackOverflow post showing you older alternative solutions.

Using shell=False with an argument string

You're likely using a version of Python older than 3.7.0; update it to the most recent one available. Otherwise there are other answers in this Stack Overflow post showing you older alternative solutions.

TL;DR in 2020

TL;DR in 2021

Do if result.returncode == 127: print("The program failed for some weird reason") elif result.returncode == 0: print("The program succeeded") else: print("The program failed unexpectedly")

Do

if result.returncode == 127: print("The program failed for some weird reason")
elif result.returncode == 0: print("The program succeeded")
else: print("The program failed unexpectedly")