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Created on 2019-09-08 14:06 by Donny Brown, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Files | ||||
|---|---|---|---|---|
| File name | Uploaded | Description | Edit | |
| test.py | Donny Brown, 2019-09-08 14:06 | |||
| Messages (3) | |||
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| msg351328 - (view) | Author: Donny Brown (Donny Brown) | Date: 2019-09-08 14:06 | |
Starting multiprocessing.Process causes FileNotFoundError in certain case:
```
import multiprocessing as mp
import time
def demo(f):
print(f)
def main():
cxt=mp.get_context('spawn')
f=cxt.Value('i', 0)
p=cxt.Process(target=demo, args=[f])
p.start()
return p
if __name__ == "__main__":
p=main()
p.join()
```
In this example, 'f' is supposed to stay in memory since it is referred by p._args. However, starting the process raises FileNotFoundError once there is not explicit reference to the arguments passed to the new process in the original process.
|
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| msg376246 - (view) | Author: Irit Katriel (iritkatriel) *  |
Date: 2020-09-02 14:49 | |
On windows 10, Python 3.10 I don't get a FileNotFoundError from this script. Which system and python version are you seeing it on? |
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| msg396529 - (view) | Author: Irit Katriel (iritkatriel) * |
Date: 2021-06-25 22:43 | |
Closing as there isn't enough information about the problem. If you are still seeing it, please create a new issue with full details. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:19 | admin | set | github: 82236 |
| 2021-06-25 22:43:08 | iritkatriel | set | status: open -> closed resolution: rejected messages: + msg396529 stage: resolved |
| 2020-09-02 14:49:46 | iritkatriel | set | nosy:
+ iritkatriel messages: + msg376246 |
| 2019-09-10 06:33:14 | Donny Brown | set | type: behavior title: Starting multiprocessing.Process causes FileNotFoundError -> Starting multiprocessing.Process raises FileNotFoundError unexpectedly |
| 2019-09-08 14:06:55 | Donny Brown | create | |