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Created on 2020-08-05 14:25 by aroberge, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Messages (2) | |||
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| msg374884 - (view) | Author: Andre Roberge (aroberge) * | Date: 2020-08-05 14:25 | |
The following code is currently consistent with the type hint syntax but contains a line that is completely ignored.
>>> d = {}
>>> d['a']: int
>>> d
{}
>>> __annotations__
{}
>>> '__annotations__' in dir(d)
False
I believe that type hints that cannot be either attached to an object nor added to any other __annotations__ dict should either generate a SyntaxError or, at the very least, result in a warning.
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| msg374889 - (view) | Author: Guido van Rossum (gvanrossum) *  |
Date: 2020-08-05 15:03 | |
No, that is up to the static type checker. With PEP 563 nearing completion in Python 3.10 we will in fact be ignoring all annotations silently. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:34 | admin | set | github: 85660 |
| 2020-08-05 15:03:27 | gvanrossum | set | status: open -> closed resolution: not a bug messages: + msg374889 stage: resolved |
| 2020-08-05 14:53:46 | xtreak | set | nosy:
+ gvanrossum, levkivskyi |
| 2020-08-05 14:25:10 | aroberge | create | |