Testing retry logic, circuit breakers and polling loops with wrapture's phases, where a binding's behaviour changes on a count, a condition, an exhausted sequence, or a signal from elsewhere.

How wrapture's timeline and tape record what real code did, and how to filter, assert on and walk that record. Worked through on a resource leak that no return value reveals.

The same unit tests written with unittest.mock and with wrapture, focusing on the cases where wrapping the real code rather than replacing it changes what a test can say.

wrapture is a new Python package for monkey patching, testing and tracing built on wrapt, written by an AI under my direction. What it does, why I built it, and what happens next.

Free-threading in mod_wsgi 6.0.0 lets a single process spread Python work across multiple cores. A metrics comparison against the GIL-enabled benchmarks from before.

mod_wsgi 6.0.0 adds WSGISwitchInterval, a tuning lever for Python's GIL switch interval. With proper telemetry it can deliver large gains on CPU-bound workloads.