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Blog post where someone used Python quirks to evaluate false == true (lemmy.dbzer0.com)
submitted 3 months ago* (last edited 3 months 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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[-] solrize@lemmy.ml 12 points 3 months ago* (last edited 3 months ago)

The builtin names are True and False and they became keywords a while back. true and false are just ordinary variables that you can set to whatever you want.

Meanwhile, in Forth:

: 2 3 ; \ define 2 as 3
2 2 + .  6 ok   \ shows that 2+2 is now 6
[-] undefined@lemmy.hogru.ch 3 points 3 months ago

God I hated that about Python. Why tf we capitalizing True and False?

[-] lime@feddit.nu 4 points 3 months ago

all builtin constants are capitalised.

[-] RecallMadness@lemmy.nz 4 points 3 months ago* (last edited 3 months ago)

All… five of them!

The other 7 are all lowercase. (One of you ignore site)

[-] lime@feddit.nu 2 points 3 months ago

yeah but dunders usually aren't included in counts

[-] squaresinger@lemmy.world 1 points 3 months ago

And they also don't follow the conventions for constants otherwise, which are all caps.

[-] lime@feddit.nu 1 points 3 months ago

i think we're talking about different things.

[-] solrize@lemmy.ml 2 points 3 months ago

They are constants, like None, which has always been around.

this post was submitted on 15 Aug 2025
35 points (97.3% liked)

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