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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(), ...) .
29 wrz 2016 · self is the self-reference in a Class. Your code is not in a class, you only have functions defined. You have to wrap your methods in a class, like below. To use the method main(), you first have to instantiate an object of your class and call the function on the object.
Default argument values are evaluated at function define-time, but self is an argument only available at function call time. Thus arguments in the argument list cannot refer each other. It's a common pattern to default an argument to None and add a test for that in code:
10 kwi 2024 · Learn how to fix the common error "NameError: name 'self' is not defined" in Python. See examples of different causes and solutions for using self in methods, default values, and class variables.
17 sie 2020 · Learn how to fix the error "NameError: name 'self' is not defined" in Python classes and methods. See code examples and explanations for two common scenarios: missing or invalid arguments for self.
Learn what self means in Python, why it's important, and how to fix the common error of self is not defined. See examples of creating instances, using decorators, and accessing attributes with self.
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.
