embedding python

[tom fogal]

Hi all, I can't seem to find out how to get a python script to run from 
a C (well, C++...) program.

In particular, I'm confused about how the execution of the example code 
at http://docs.python.org/ext/pure-embedding.html works. If I call the 
example code 'multiply.py' and I generate an executable named 'call' (as 
the page suggests), I had expected the following to work:

./call multiply.py multiply 3 2

where 'multiply' is a function in multiply.py. The above comes back with 
  an ImportError saying that there is "No module named multiply.py", and 
a similar message if I change 'multiply.py' to 'multiply' (again as the 
page would suggest).

I saw somewhere (sorry, I forget where now) some code that would suggest 
  that I need to tag my python files with a module name, and got the 
vague impression that something like:

modname="multiply"
mod = __import__(modname)

would do the trick. This doesn't seem to affect things though...

Could anyone show me in the right direction towards just getting a 
simple 'hello world' type example to be run from a PyImport_<something> 
call? I'm hoping I could figure it out without bothering anyone else 
from then on.

Thank you,

-tom