Method append

Lib/test/pickletester.py:4309–4310

(self, item)

    def __eq__(self, other):
        return type(self) is type(other) and self.items == other.items
    def append(self, item):
        self.items.append(item)
    def __reduce__(self):
        return type(self), (), None, iter(self.items), None