For what it's worth, Python does not implement euclidean modulo (it implements flooring division aka "F-definition", proposed by Knuth), so Rust did not implement "this" it implemented an operation which, as far as I can tell, Python doesn't have.
It seems quite relevant as it diverges significantly from the assertion put forth in the tweet: Python's remainder takes the sign of the divisor. So flooring division fixes the more common issue but leaves an other one present.
> python, unlike C, had the mod operator always return a positive number, even if the first argument is negative
That is true for Rust's rem_euclid as well: https://play.rust-lang.org/?version=stable&mode=debug&editio...