I know this doesn't help for Python, but... You can do that in Java with instrumentation. Things like ByteBuddy [1] or ReactorDebugAgent [2] will add debuggin

I know this doesn't help for Python, but... You can do that in Java with instrumentation. Things like ByteBuddy [1] or ReactorDebugAgent [2] will add debugging statements into your code without you having to touch anything. If you want more advanced, then you can look at libstapsdt [3] which enables JVM applications to create USDT probes. [1] https://tersesystems.github.io/terse-logback/guide/instrumentation/ https://tersesystems.github.io/terse-logback/guide/instrumen... [2] https://github.com/reactor/reactor-tools#reactor-debug-agent---production-ready-assembly-back-tracing https://github.com/reactor/reactor-tools#reactor-debug-agent... [3] https://github.com/goldshtn/libstapsdt-jni https://github.com/goldshtn/libstapsdt-jni