python, __slots__, and “attribute is read-only”

Question

I want to create an object in python that has a few attributes and I want to protect myself from accidentally using the wrong attribute name. The code is as follows:

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Answer 1

class MyClass( object ) :
    m = None # my attribute

The m here is the class attributes, rather than the instance attribute. You need to connect it with your instance by self in __init__.