how to debug extended module?
Diez B. Roggisch
deets at nospam.web.de
Tue Dec 1 04:14:58 EST 2009
junyoung schrieb:
> Hi, I am a newbie who want to implement a extend module to use native
> python language with my own shared library.
If it's a C shared library, don't bother extending it. Use ctypes to
wrap it. Much easier, and no need for a compiler.
>
> to test wrapper library(extend module, name is 'test.so'), I created
> some test-cases.
>
> There are some errors what I couldn't figure our reasons.
>
> ex)
> SystemError: error return without exception set
> ....
> ...
This indicates that you violated the exception protocol.
http://docs.python.org/c-api/exceptions.html
> so, I ran the ddd with python and then I set test.py as a argument of
> it.
>
> ex)
> ddd python
>
> in ddd
> run with arguments : test.py
>
>
> but in this situation, I couldn't step in my own shared library
> (compiled as the debug mode).
>
> Is there any clear way to debug my extend module(that it, debug shared
> library)??
I do it like this:
# gdb python
gdb $ set args test.py
gdb $ run
You can only debug a binary program (test.py isn't one, python is). But
trough the args, you get yours script running.
It *might* help to have a python debug build, I personally never needed
that.
Diez
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