Method rfind

Lib/collections/__init__.py:1563–1566

(self, sub, start=0, end=_sys.maxsize)

        return self.__class__(self.data.replace(old, new, maxsplit))

    def rfind(self, sub, start=0, end=_sys.maxsize):
        if isinstance(sub, UserString):
            sub = sub.data
        return self.data.rfind(sub, start, end)

    def rindex(self, sub, start=0, end=_sys.maxsize):
        if isinstance(sub, UserString):