🔒 Typehint classes with TypedDict

[halcyon mesa]

I have a class inheriting dict: py class MyDict(dict): ... and a Typehint defined:py class MyDictTypeHint(TypedDict): key1: int key2: str How do I typehint MyDict to MyDictTypeHint? I tried inheriting from both:```py
class MyDict(dict, MyDictTypehint):
...

[cunning pine]

@halcyon mesa

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[main kraken]

what are you actually trying to accomplish by subclassing dict?

the usual way is to just use the TypedDict subclass

[halcyon mesa]

it's going to have few specific methods which dicts usually don't have

[main kraken]

ok, why not just add those to your TypedDict subclass then?

[halcyon mesa]

it needs to inherit dict for using dict features

[main kraken]

TypedDict is also a dict

have you at least tried to do this?

[halcyon mesa]

yup, I made a shorter example tho its not same

!e

from typing import TypedDict

class MyTypedDict(TypedDict):
    key1: int
    
class MyDict(MyTypedDict):
    
    def __init__(self, value):
        super().__init__({
            'key1': value - 10
        })

foo = MyDict(20)
print(foo)

[cunning pine]

:x: Your 3.12 eval job has completed with return code 1.

001 | Traceback (most recent call last):
002 |   File "/home/main.py", line 13, in <module>
003 |     foo = MyDict(20)
004 |           ^^^^^^^^^^
005 | TypeError: 'int' object is not iterable

[halcyon mesa]

this is where it goes wrong

[main kraken]

that is an odd way to use dicts

why is your class a dict subclass at all?

if you insist on doing this, then you need to override __new__() instead of __init__()

[halcyon mesa]

let me try

[halcyon mesa]

like i said its for adding specific methods which perform operations on its items

[main kraken]

are you otherwise using tMyDict as a dict? like you're using other dict methods too?

if not, then maybe implementing __getitem__() would be enough

[halcyon mesa]

yes i would be using most of dict methods

[halcyon mesa]

well i dont think i can pass arguments from new, like i can in init

[main kraken]

WDYM?

[cunning pine]

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