how to debug python's extend module written in c/c++ on windows

[Diez B. Roggisch]

tcfg at sina.com schrieb:
> dear Diez:
> 
>    I need step into c function in extending module(DLL) when debugging
> the script. and I want Single-step debugging the extend module itself,
> but python script Launched The whole process.

That is exactly what attaching a C-debugger to python will give you. Did 
you actually try it? Do you know how to debug C-programs?

Diez