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feat(python): Update troubleshooting tip on multiprocessing #15544

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Nov 18, 2025
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feat(python): Update troubleshooting tip on multiprocessing #15544

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feat(python): Update troubleshooting tip on multiprocessing
sentrivana Nov 18, 2025
92af1e3
switch method around
sentrivana Nov 18, 2025
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9 changes: 6 additions & 3 deletions docs/platforms/python/troubleshooting.mdx
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Expand Up @@ -138,9 +138,9 @@ If you need more fine-grained control over the behavior of the socket, check out
<PlatformLink to="/configuration/options/#socket-options">socket-options</PlatformLink>.
</Expandable>

<Expandable title="Multiprocessing deprecation after Python 3.12">
<Expandable title="Multiprocessing deprecation in Python 3.12 and 3.13">

If you're on Python version 3.12 or greater, you might see the following deprecation warning on Linux environments since the SDK spawns several threads.
If you're on Python version 3.12 or 3.13, you might see the following deprecation warning on Linux environments since the SDK spawns several threads.

```
DeprecationWarning: This process is multi-threaded, use of fork() may lead to deadlocks in the child.
Expand All @@ -157,10 +157,13 @@ import concurrent.futures
sentry_sdk.init()

if __name__ == "__main__":
multiprocessing.set_start_method("spawn")
multiprocessing.set_start_method("forkserver") # or "spawn"
pool = concurrent.futures.ProcessPoolExecutor()
pool.submit(sentry_sdk.capture_message, "world")
```

`fork` was the default start method on POSIX platforms on Python 3.13 and lower. In Python 3.14, the default start method on POSIX platforms was changed to `forkserver`. On Windows and macOS the default is `spawn`.

</Expandable>

<Expandable title="Why was my tag value truncated?">
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