gh-145300: Add __length_hint__ for itertools.islice#145333

KowalskiThomas wants to merge 4 commits intopython:mainpython/cpython:mainfrom

KowalskiThomas:kowalski/gh-145300-add-__length_hint__-for-itertools-isliceKowalskiThomas/cpython:kowalski/gh-145300-add-__length_hint__-for-itertools-isliceCopy head branch name to clipboard