On 14 September 2017 at 22:07, Ethan Furman <ethan@stoneleaf.us> wrote:

For comparison's sake, what would the above look like using __class__ assignment? And what is the performance difference?

FWIW I found a different solution:

# file mod.py

from typing_extensions import allow_forward_references

allow_forward_references()

from mod import Vertex, Edge # the import is from this same module.

It works both with __class__ assignment and with __getattr__

Ivan