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- Python self keyword - Stack Overflow
9 First, Python's self is not a keyword, it's a coding convention, the same as Python's cls Guido has written a really detailed and valuable article about the origin of Python's support for class, and in that article, Guido explains why use self and cls, and why they are necessary
- 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
- How to avoid explicit self in Python? - Stack Overflow
The "self" is the conventional placeholder of the current object instance of a class Its used when you want to refer to the object's property or field or method inside a class as if you're referring to "itself"
- How to implement __iter__(self) for a container object (Python)
__iter__(self) However, upon following up the link to Iterator Types in the Python reference manual, there are no examples given of how to implement your own Can someone post a snippet (or link to a resource), that shows how to do this? The container I am writing, is a map (i e stores values by unique keys) dicts can be iterated like this:
- When to use self, self, mut self in methods? - Stack Overflow
Self is an alias for the type that the impl block is for The rules of ownership and borrowing apply to self as they apply to any other parameter (see e g this answer) Examples of when to use which here and here Examples of when we should take ownership here, although the answers don't provide code examples but just point to the docs self is not just used as the first parameter of a method
- Purpose of return self python - Stack Overflow
Returning self from a method simply means that your method returns a reference to the instance object on which it was called This can sometimes be seen in use with object oriented APIs that are designed as a fluent interface that encourages method cascading
- Python class methods: when is self not needed - Stack Overflow
18 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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