[issue27985] Implement PEP 526

[Ivan Levkivskyi]

Ivan Levkivskyi added the comment:

I could change STORE_ANNOTATION opcode so that it will recreate __annotations__ if __name__ == '__main__'.

Or do you now think that it should re-create it always? I still think that always re-creating __annotations__ if they don't exist seems like silencing a possible error. As I mentioned in previous discussion, I think we should allow people to explicitly del __annotations__ (for example if someone wants to make a class with annotations that are "invisible" to runtime tools) and warn them if later they use annotations.

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<http://bugs.python.org/issue27985>
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