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Created on 2019-06-14 10:32 by Валентин Бурченя, last changed 2022-04-11 14:59 by admin. This issue is now closed.
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| msg345575 - (view) | Author: Валентин Бурченя (Валентин Бурченя) | Date: 2019-06-14 10:32 | |
Future has a done_callback, but Task not, why ? Is a safe to use Task._fut_waiter future done_callback? |
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| msg345578 - (view) | Author: Andrew Svetlov (asvetlov) *  |
Date: 2019-06-14 10:44 | |
1. Task._fut_waiter is a private API, please avoid it 2. Task class is derived from Future, thus it HAS add_done_callback() method. The other question is that from my experience if the application-level code uses add_done_callback() the design is not perfect and error-prone. add_done_callback() is useful for relatively low-level libraries. |
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| msg345582 - (view) | Author: Валентин Бурченя (Валентин Бурченя) | Date: 2019-06-14 11:04 | |
Sorry, you right! But why not set_result and set_exception? My code: waiter_task.add_done_callback(lambda f: f.result()) because i don't wont to store my running tasks in the array but i must query awaiteable for the result. Thank you for a reply. |
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| msg345584 - (view) | Author: Andrew Svetlov (asvetlov) * |
Date: 2019-06-14 11:09 | |
See bpo-32363 |
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| msg345586 - (view) | Author: Валентин Бурченя (Валентин Бурченя) | Date: 2019-06-14 11:15 | |
Thanks |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:16 | admin | set | github: 81462 |
| 2019-06-14 11:15:23 | Валентин Бурченя | set | status: open -> closed messages: + msg345586 stage: resolved |
| 2019-06-14 11:09:33 | asvetlov | set | messages: + msg345584 |
| 2019-06-14 11:04:58 | Валентин Бурченя | set | messages: + msg345582 |
| 2019-06-14 10:44:26 | asvetlov | set | messages: + msg345578 |
| 2019-06-14 10:38:02 | xtreak | set | nosy:
+ asvetlov, yselivanov components: + asyncio |
| 2019-06-14 10:32:18 | Валентин Бурченя | create | |