Method clear

Lib/_collections_abc.py:730–736

This is slow (creates N new iterators!) but effective.

(self)

        return value

    def clear(self):
        """This is slow (creates N new iterators!) but effective."""
        try:
            while True:
                self.pop()
        except KeyError:
            pass

    def __ior__(self, it):
        for value in it: