Programmer Humor

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Python needs an actual default function (lemmy.ml)

submitted 1 week ago by HiddenLayer555@lemmy.ml to c/programmer_humor@programming.dev

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Also, do y'all call main() in the if block or do you just put the code you want to run in the if block?

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[–] slacktoid@lemmy.ml 51 points 1 week ago (5 children)

I call main() in the if

[–] bastion 7 points 1 week ago (4 children)

I always use

if "__main__" == main:
    __main__()

..and earlier in the code:

def __main__():
    while True:
        pass
main = "__main__"

This helps to prevent people from arbitrarily running my code as a library or executable when I don't went them to.

[–] slacktoid@lemmy.ml 4 points 1 week ago (2 children)

Can you elaborate on this blood magic?

[–] bastion 5 points 1 week ago* (last edited 1 week ago) (1 children)

It simply swaps some things around to make things more confusing, then goes into an infinite loop (whether or not you import or execute it standalone). it's no different than just including in the global scope:

while True:
    pass

I was kinda lazy with the fuckery, tbh. I could have gotten much more confusing, but don't have too much time today. :-)

Maybe I should do a post in programmer humor about preventing arbitrary execution of your python code, and make it sound like it prevents security flaws. ..which, technically, it does - if your code isn't executing, and instead a useless infinite loop is executing, there's nothing to exploit.

[–] slacktoid@lemmy.ml 1 points 1 week ago

Lol OK I was wondering how would this run

And yes you should!!

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