Function _is_shake_constructor

Lib/hmac.py:29–36

(digest_like)

def _is_shake_constructor(digest_like):
    if isinstance(digest_like, str):
        name = digest_like
    else:
        h = digest_like() if callable(digest_like) else digest_like.new()
        if not isinstance(name := getattr(h, "name", None), str):
            return False
    return name.startswith(("shake", "SHAKE"))


def _get_digest_constructor(digest_like):