API for outputting different formats from CPython sampling profiler

Feature or enhancement

Proposal:

CPython 3.15 has statistical sampling profiler which currently only supports outputting

1. pstats https://docs.python.org/3.15/library/profile.html#pstats.Stats
2. collapsed format for flamegraphs https://github.com/python/cpython/blob/8d5c3341c538cd1a4192ca8a1536b2eed4b98c69/Lib/profiling/sampling/stack_collector.py#L24

Since it's still an early stage for the sampling profiler, I thought it would be nice to initiate discussion around how to support multiple different formats from the profiler.

1. pprof
2. OTel

are the formats that could potentially be added, but supporting those from CPython would introduce dependencies that might complicate building/testing and distributing CPython.

I'd like to suggest that CPython has an interface to support 3rd party collectors. What do you think?

Has this already been discussed elsewhere?

I have already discussed this feature proposal on Discourse

Links to previous discussion of this feature:

https://discuss.python.org/t/pre-pep-api-for-outputting-different-formats-from-cpython-sampling-profiler/103490

Beginnen Sie mit der Lektüre von Lib/profiling/sampling/stack_collector.py und der bestehenden Verarbeitung von pstats und collapsed-format, auf die im Issue verwiesen wird. Lesen Sie die verlinkte Discourse-Diskussion, bevor Sie eine Schnittstelle für Collector von Drittanbietern vorschlagen; als abgeschlossen würde eine vereinbarte API, klar definierte Grenzen der unterstützten Formate sowie ein Plan für die Build-, Test- und Distributionsbeschränkungen von CPython voraussetzen.