Blog post where someone used Python quirks to evaluate false == true

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"