[Pythonmac-SIG] Building VPython on MacOSX..

[Steve Spicklemire]

Hi Folks,

I'm trying to build VPython from CVS (www.vpython.org, cvs at sf.net) 
using "machopython". I'm guessing the easiest way to do this is to use 
the fink port and XFree86 etc, gtk+, gtkglarea, and so on. I tried 
this.... and have actually created a 'cvisualmodule.so' on MacOSX 10.1. 
However when I try to "import cvisual", I get:

[vh10-15:~/Development/cvisual] steve% python -c "import cvisual"
Traceback (most recent call last):
   File "<string>", line 1, in ?
ImportError: Failure linking new module


Checking the source in Python/dynload_next.c it looks like the problem 
is happening here:

                if (errString == NULL) {
                         newModule = NSLinkModule(image, pathname,
                                 
NSLINKMODULE_OPTION_BINDNOW|NSLINKMODULE_OPTION_RETURN_ON_ERROR);
                         if (!newModule)
                                 errString = "Failure linking new module";
                 }

so NSLinkModule is returning NULL. Any thoughts on how to debug this? 
Can otool generate any clues about what's wrong with the shared lib? I 
can't run gdb on the module since it never loads! I have also seen 
rumblings about the new dynload_darwin.c. I don't think that my problem 
is related to that... but I would love to hear opinions.

thanks for any help!

take care,
-steve