`reversed(s)` returns an iterator. The much slower equivalent of `s[::-1]` is `'... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

wting on Oct 31, 2012 | parent | context | favorite | on: C++11 and Boost - Succinct like Python

`reversed(s)` returns an iterator. The much slower equivalent of `s[::-1]` is `''.join(reversed(s))`.

It's odd how Python has list.reverse() but not str.reverse(). Probably a conscious design decision sometime ago.

ot on Oct 31, 2012 [–]

list is mutable while str is not. So reverse() should return a new copy, but it would duplicate the functionality of s[::-1] (which is quite idiomatic, although a bit obscure)

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact