Method index

Lib/collections/__init__.py:1538–1541

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

        return self.data.format_map(mapping)

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

    def isalpha(self):
        return self.data.isalpha()