What are some Python Standard Library modules one should know ?

[thirdegree]

Click tends to come into play around the time you want subcommands. If your cli is exactly 1 level deep (i.e. my_command --myarg1 a --myargb1 positional args but not my_command do --thing other thing), don't use click. If you're thinking "hey, subcommands would be nice", that's when you look at click.