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8 maj 2019 · You can only use self in a context where it's defined. There's a self defined inside your __init__ and login_or_exist functions, but not at the top-level where you're running the first_class(self.Bank_Users.keys(), ...).
However, if you accept a variable number of arguments, self will be arg[0], and the variable self will be undefined. A minimal example. class Obj: def foo(*args): print(self.bar) >NameError: name 'self' is not defined. Correction: class Obj: def baz(self, *args): print(self.bar)
10 kwi 2024 · The "NameError: name 'self' is not defined" occurs for multiple reasons: Forgetting to specify the self argument in a method. Trying to use self.attribute as a default value in a method argument. Trying to access self outside of a method. Here is an example of how the error occurs. main.py.
17 sie 2020 · The “NameError: name ‘self’ is not defined” error is raised when you forget to specify “self” as a positional argument or when you use “self” in another argument in a list of arguments.
Learn how to fix the 'self is not defined' error in Python. This common error can occur when you're trying to access a class member from outside the class definition. Here's a quick guide to help you troubleshoot the issue and get your code working again.
In this tutorial, you'll learn how to use the Self type hint in Python to annotate methods that return an instance of their own class. You'll gain hands-on experience with type hints and annotations of methods that return an instance of their class, making your code more readable and maintainable.
Python Self. Python Glossary. The self Parameter. The self parameter is a reference to the current instance of the class, and is used to access variables that belongs to the class. It does not have to be named self , you can call it whatever you like, but it has to be the first parameter of any function in the class:
