Message354398
preexec_fn has been mentally and advisability deprecated for years. :)
I'll mark it officially with pending deprecation in 3.9 destined to be removed in 3.11. tracking that in its own rollup issue https://bugs.python.org/issue38435
As far as posix_spawn goes, I expect these kinds of between fork+exec features to be something that prevents posix_spawn from being usable. As are many other things. People who want to use posix_spawn will need to know that and seek to avoid those. That's a documentation issue first and foremost. Our existing POpen API is very old and wasn't designed to make that nice.
A new API could be made that *only* supports posix_spawn available features if you want an entrypoint that encourages the generally lower latency posix_spawn path. (A subprocess.spawn function similar to subprocess.run perhaps?) That should be taken up within its own enhancement issue. |
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Date |
User |
Action |
Args |
2019-10-10 18:25:51 | gregory.p.smith | set | recipients:
+ gregory.p.smith, vstinner, christian.heimes |
2019-10-10 18:25:51 | gregory.p.smith | set | messageid: <1570731951.3.0.800765251372.issue38417@roundup.psfhosted.org> |
2019-10-10 18:25:51 | gregory.p.smith | link | issue38417 messages |
2019-10-10 18:25:51 | gregory.p.smith | create | |
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