[docs] [issue27646] doc: yield from expression can be any iterable

Change by Terry J. Reedy <tjreedy@udel.edu>: ---------- keywords: +patch pull_requests: +23373 pull_request: https://github.com/python/cpython/pull/24595 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue27646> _______________________________________