On 4/20/23 18:44, Lorenzo Catoni wrote:
Here, the TypeError occurred because "self" was passed as an input
Instantiate X and observe it there
x2 = X()
>>> X.__enter__
<class 'int'>
>>> X.__exit__
<function X.<lambda> at 0x...>
>>> x2.__enter__
<class 'int'>
>>> x2.__exit__
<bound method X.<lambda> of <__main__.X object at 0x...>>
To receive self the method must be bound. __enter__ = int doesn't bind
the int type/class on instantiation, so it never gets self. Your custom
function binds and receives self.
I am not sure if there is documentation to explain better specifically
what makes makes type different and not bindable.
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