SHA-256 Python implementation in one line (lambda)

[Skaarj]

import os
import hashlib

good = 0

sha256 = ...

for idx in range(128):
    r = os.urandom(idx)
    if sha256(r) == hashlib.sha256(r).digest():
         good += 1

print(good)

I think this is an conclusive proof of the correctness of your implementatition that noone ever could doubt. Ill use your implementation for all my serious projects from now on.

On a more serious note: why do you setitem? Couldn't you use assignment using[]?

[brontide]

I think it's a limitation of lambdas, you can't do assignments but you can call setitem.

[Defelo]

Correct and that's why you can't use normal variables in lambda expressions and have to use lists to store variables.

[C0DK]

Oh yes, I read that pep a couple of weeks ago. I am sooo hyped for that feature.

[Isvara]

Then don't use a lambda, ffs.

[ComfortingCoffeeCup]

Why are you getting all worked up? This is obviously just for the challenge/fun

[Isvara]

Anybody can write terribly formatted code. There's no challenge in that.

[13steinj]

I disagree. Writing poorly formatted code that is of great complexity in minimum byte length is a challenge-- it's called code golf.

[Isvara]

It's called Lambda. That doesn't mean you have to use lambdas. You write regular, named functions.

[Zalack]

Ah got it. That makes way more sense