[issue40583] Runtime type annotation mutation leads to inconsistent behavior

[Ivan Levkivskyi]

Ivan Levkivskyi <levkivskyi at gmail.com> added the comment:

This is actually a specified behavior (motivated by memory savings for class objects, that are already pretty large). If you scroll down the link you posted it says:

> Note that if annotations are not found statically, then the ``__annotations__`` dictionary is not created at all.


So what do you propose? Changing this behavior is not easy, because it would be a backwards incompatible change.

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nosy: +levkivskyi

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