python vars()函數會呼叫會代為呼叫實例的__dict__

>>> class Some:
...     def __init__(self):
...         self.x = 10
...         self.y = 20
...
>>> s = Some()
>>> vars(s){'y': 20, 'x': 10}
>>>

用vars()可觀看s的屬性,回傳dict型别物件