how to use magic methods (delitem and setitem) in python?

Question

I don't know how they are used, one is supposed to clear values ​​but I don't know how to activate them

Answer 1

__setitem__ and __delitem__ implementation or implement those methods like e.g.

def __setitem__(self, key, value):
"""
:raise: Always.
:raises: TypeError
"""
self.data_set[key] = value # Raise from tuple.

def __delitem__(self, key):
"""
:raise: Always.
:raises: TypeError
"""
raise TypeError("Item deletion is unsupported")

Answer 2

https://www.sololearn.com/learn/JUMP_LINK__&&__Python__&&__JUMP_LINK/2470/?ref=app

If you need help, link your ACTUAL CODE and explain what exactly you want to do.