this post was submitted on 15 Aug 2025
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Blog post where someone used Python quirks to evaluate false == true (lemmy.dbzer0.com)
submitted 1 day ago* (last edited 1 day ago) by CrackedLinuxISO@lemmy.dbzer0.com to c/programmer_humor@programming.dev
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Does anyone remember an old blog post where someone used various Python language hacks to override boolean primitives, such that the statement false == true evaluated as true? I'm 90% sure it was python, but maybe it was some other language.

I've been looking for that post recently, but haven't had any luck.

Thanks to antagonistic for finding it! I guess it was less of an "exploit", and more of a "please don't touch the loaded foot-gun"

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[–] LodeMike@lemmy.today 4 points 1 day ago (4 children)

Maybe they did "False is True" because they're both the same Python object?

[–] solrize@lemmy.ml 5 points 1 day ago (1 children)

I just checked and they aren't.

[–] LodeMike@lemmy.today 3 points 1 day ago* (last edited 1 day ago) (1 children)

Maybe they defined them as variable names instead?

Or they could have just changed the language. Do you remember them compiling or editing C? (Python is usually run on cpython)

[–] solrize@lemmy.ml 5 points 1 day ago (1 children)

True is False gives false in Python 2.7.18 as well as 3.x. But, in 2.x, they aren't keywords, so you can say True=False=5 and then they are both the same object.

[–] LodeMike@lemmy.today 3 points 1 day ago

I really need to stop trusting how durable this language is.

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