python class __slots__ - Slot là gì? Ý nghĩa của từ slot trong cách lĩnh vực khác nhau bm888 slot

class Example(): __slots__ = ("slot_0", "slot_1") def __init__(self): self.slot_0 = "zero" self.slot_1 = "one" x1 = Example() print(x1.slot_0) print(x1.slot_1) zero one.

For the last question specifically, see also Existence of mutable named tuple in Python? ... They were added in Python 2.6 and Python 3.0, although there is a recipe for implementation in Python 2.4.

The Signal class provides a way to declare and connect Qt signals in a pythonic way. ... receiver – Python callable, @Slot or Signal.