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Kurobe Kuro^T_T^
5,369 Pointsi dont get it, is __int__, __float__, __init__, and__name__ names or variavles name or they have they own use??
;-;
1 Answer
Chris Freeman
Treehouse Moderator 68,423 PointsVariable names with a double-underscore prefix and suffix are typically reserved for built-in Python object attributes and methods and each has a special purpose.
As mentioned in PEP 8:
__double_leading_and_trailing_underscore__: "magic" objects or attributes that live in user-controlled namespaces. E.g.__init__,__import__or__file__. Never invent such names; only use them as documented.
As for your list:
-
__int__: name of class method called when class instance issued in an integer context -
__float__: name of class method called when class instance issued in an float context -
__init__: name of class method called to initialize a class instance after it has been created -
__name__: an object attribute containing the string name of the object. see below
>>> def foo():
... pass
...
>>> foo
<function foo at 0x7ffa6241ba60>
>>> f = foo
>>> f
<function foo at 0x7ffa6241ba60>
>>> f.__name__
'foo'
Post back if you need more help. Good luck!!
Kurobe Kuro^T_T^
5,369 PointsKurobe Kuro^T_T^
5,369 Pointsohhh thank you i understand now