Options do not work.

[mario-grgic]

I'm using Python 3.7.0 on macOS 10.14.2 and none of the options works. For example:

statcode -a just prints usage. statcode --list also. statcode -n 404 says "Sorry, statcode does not recognize: -n". But it prints it in usage message as valid option.

[Malex]

Maybe the help is not specific enough, but since I implemented that part, I can answer:
Since statcode handles both status codes as well as headers, the all options wouldnt make much sense without a specifier, since listing statuses and headers together is a bit confusing.
If you read the usage it explicity says:
-a,-l, --all,--list statucode prints all codes in compact version
-a,-l, --all,--list headers prints all headers in compact version

the correct syntax is statcode -a statuscode for statuses, headers otherwise. I think it's correct it prints usage if the usage is not correct
https://github.com/shobrook/statcode/blob/master/statcode/statcode.py#L332

As to your other question, I've not ever seen that option before, was implemented by someone else, but looking at the code at line
https://github.com/shobrook/statcode/blob/master/statcode/statcode.py#L335
the -n is an option you add after the command, not before, so go for statcode 404 -n