Python 3.15 will include a new sampling profiler (docs.python.org)

Key features include:

* Zero-overhead profiling: Attach to any running Python process without affecting its performance

* No code modification required: Profile existing applications without restart

* Real-time statistics: Monitor sampling quality during data collection

* Multiple output formats: Generate both detailed statistics and flamegraph data

* Thread-aware profiling: Option to profile all threads or just the main thread