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- What is the purpose of the `self` parameter? Why is it needed?
For a language-agnostic consideration of the design decision, see What is the advantage of having this self pointer mandatory explicit? 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 If OP omitted self in the body of the method and got a NameError, consider How can
- oop - Why do you need explicitly have the self argument in a Python . . .
By making the self reference explicit, you're free to refer to any object by that self reference Also, such a way of playing with classes at runtime is harder to do in the more static languages - not that's it's necessarily good or bad It's just that the explicit self allows all this craziness to exist
- Why do I get TypeError: Missing 1 required positional argument: self?
See Why do I get 'takes exactly 1 argument (2 given)' when trying to call a method? for the opposite problem
- When to use self, self, mut self in methods? - Stack Overflow
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
- What does \\. self actually do in Swift SwiftUI? - Stack Overflow
I think it is setting the id for each list item as each item in the numbers array? Correct me if wrong - but is each id being set as whatever Int is in each entry of the numbers array? If so, then what does \ actually do when typing \ self and what does self actually do in combination with \?
- git - SSL certificate problem: self signed certificate in certificate . . .
The reason was an SSL certificate problem: 'self-signed certificate in certificate chain '" Protected question To answer this question, you need to have at least 10 reputation on this site (not counting the association bonus) The reputation requirement helps protect this question from spam and non-answer activity
- Difference between _self, _top, and _parent in the anchor tag target . . .
I know _blank opens a new tab when used with the anchor tag and also, there are self-defined targets I use when using framesets but I will like to know the difference between _parent, _self and _top
- Python class methods: when is self not needed - Stack Overflow
17 What is self? In Python, every normal method is forced to accept a parameter commonly named self This is an instance of class - an object 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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