Recursive type annotations

Nagy László Zsolt gandalf at shopzeus.com
Wed Jun 8 09:31:18 EDT 2016


>>         pass
>>
>> NameError: name 'Test' is not defined
> I think you can fix this by using a string annotation as follows:
>
>     class Test:
>         def test(self, child: "Test"):
>             pass
Yes, you are right. It is not directly written in the official
documentation ( https://docs.python.org/3/library/typing.html ), but it
is in the PEP 0484, section "Forward references".

Thanks!

   Laszlo



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