Method removeprefix

Lib/collections/__init__.py:1506–1509

(self, prefix, /)

        return self.data.count(sub, start, end)

    def removeprefix(self, prefix, /):
        if isinstance(prefix, UserString):
            prefix = prefix.data
        return self.__class__(self.data.removeprefix(prefix))

    def removesuffix(self, suffix, /):
        if isinstance(suffix, UserString):