One post tagged with "tutorial"

The AttributeError is one of the most common exceptions in Python, indicating an attempt to access or set a class attribute that simply doesn't exist. When it occurs within the context of a @dataclass, it often points to a misunderstanding of how the decorator automatically generates methods like __init__ and __setattr__.

Here is a breakdown of the most frequent AttributeError scenarios involving dataclasses and the high-level solutions to resolve them.