[winter_blue]

Wow, that's pretty amazing. I wonder how it's implemented, and if there are any tutorials on implementing something similar, for programming language designers/creators.

[bobbyi]

Theres also Py Spy, a profiling tool that can generate flame charts containing a mix of python and C (or C++) calls.

https://github.com/benfred/py-spy

It's worked really well for my needs

[misnome]

py-spy also makes it very easy to scrape from existing processes, which is invaluable if you are e.g. ever trying to diagnose a deadlock

[vmiklos]

I think it uses gdb's frame filter API: https://sourceware.org/gdb/onlinedocs/gdb/Writing-a-Frame-Fi...

[fmajid]

GDB itself is fully scriptable in Python:

https://sourceware.org/gdb/current/onlinedocs/gdb.html/Pytho...