Most hacker types don’t mind a command line interface, but very few ordinary users appreciate them. However, if you write command line programs in Python ... i', metavar='Input Movie', help ...

Secondly, the input you are working with must ... you’re not going to be able to sniff the commands. That being said, a short Python snippet is all you need to dump the raw data coming in ...

That said, enums tend to be the most familiar and idiomatic way to do this in Python. You cannot match against variable contents through indexing. For instance, case commands[0]: would be rejected ...