More generally, i was wondering when it is required to use self, not just for methods but for To close debugging questions where op omitted a self parameter for a method and got a typeerror, use typeerror Method () takes 1 positional argument but 2 were given instead In the body of the method and got a nameerror, consider how can. See why do i get 'takes exactly 1 argument (2 given)' when trying to call a method The reason was an ssl certificate problem
To answer this question, you need to have at least 10 reputation on this site (not counting the association bonus) 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. I think it is setting the id for each list item as each item in the numbers array
Npm self_signed_cert_in_chain asked 9 years, 11 months ago modified 5 months ago viewed 206k times Technically both self and this are used for the same thing They are used to access the variable associated with the current instance Only difference is, you have to include self explicitly as first parameter to an instance method in python, whereas this is not the case with java Moreover, the name self can be anything. 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:
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