1) methods are just functions that happen defined in a class, and need to be callable either as bound methods with implicit self passing or as plain functions with explicit self passing I think it is setting the id for each list item as each item in the numbers array 2) making classmethod s and staticmethod s means you want to be able to rename and omit self respectively.
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Many have proposed to make self a keyword in python, like this in c++ and java
This would eliminate the redundant use of explicit self from the formal parameter list in methods.
So, in the first method self specifies that python should use the variable (attribute), that belongs to the class object we created, not a global one (outside the class). Say i want to implement a method that pretty prints the struct to stdout, should i take &self I guess self also works As you can see, this is exactly a case for &self
If you use self (or &mut self) the method will likely still compile, but it can only be used in more restricted situations. In python, every normal method is forced to accept a parameter commonly named self This is how python methods interact with a class's state You are allowed to rename this parameter whatever you please
But it will always have the same value:
Why is cls sometimes used instead of self as an argument in python classes The w3c's webappsec working group is starting to look at the issue 6 self refers to the current instance of bank When you create a new bank, and call create_atm on it, self will be implicitly passed by python, and will refer to the bank you created.
