Cannot create weak reference to NamedTuple

[Qu4tro]

Hey there.

I'm creating this issue in the follow up of pydanny/cached-property#168 and pydanny/cached-property#137

As @althonos mentioned, NamedTuple doesn't have a __weakref__ slot. My question is here, if there's any implementation detail that prohibits NamedTuple to have it or if it's just missing.

You can use this repo as an example:
https://github.com/Qu4tro/cachedproperty_immutable_classes/

Thanks in advance.

[ilevkivskyi]

This is kind of intentional, please read this email https://mail.python.org/pipermail/python-list/2005-March/346300.html

If it is not convincing, then open an issue on https://bugs.python.org and add Raymond Hettinger to nosy list.

[Qu4tro]

Thanks, that was the answer I was looking for.