|
- 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
- Why do I get TypeError: Missing 1 required positional argument: self?
The self keyword in Python is analogous to this keyword in C++ Java C# In Python 2 it is done implicitly by the compiler (yes Python does compilation internally)
- What difference does it make to use self to define a member in a . . .
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)
- 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 can I create a self-signed certificate for localhost?
I've gone through the steps detailed in How do you use HTTPS and SSL on 'localhost'?, but this sets up a self-signed certificate for my machine name, and when browsing it via https: localhost, I receive the Internet Explorer warning Is there a way to create a self-signed certificate for "localhost" to avoid this warning?
- How can I generate a self-signed SSL certificate using OpenSSL?
The W3C's WebAppSec Working Group is starting to look at the issue See, for example, Proposal: Marking HTTP As Non-Secure How to create a self-signed certificate with OpenSSL The commands below and the configuration file create a self-signed certificate (it also shows you how to create a signing request)
- 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:
|
|
|