[Pyrex] creating and populating Python/C structs

[Simon Burton]

It seems you need to include compile.h before frameobject.h (see attached).

Simon.

On Sun, 4 Sep 2005 14:58:58 +1000
Christopher Armstrong <radeex at gmail.com> wrote:

> Hi all,
> 
> I'm trying to write a small function to create Python Frame objects
> from Python code. I've been having problems getting everything
> working. I can get pyrex to compile to C well enough, but gcc is
> barfing on compiling the C. I've been reading through the available
> documentation, but haven't found anything enlightening. It seems
> dealing with Python/C API *objects* (as opposed to functions) isn't
> something that's done often?
> 
> Basically, I'm doing a cdef extern from *: and then declaring the
> PyFrameObject struct like so:
> 
>     # Just defining the members that we need to manipulate
>     struct _frame:
>         _frame *f_back
>         PyCodeObject *f_code
>         PyObject *f_builtins
>         PyObject *f_globals
>         PyObject *f_locals
>         PyObject *f_exc_type, *f_exc_value, *f_exc_traceback
>         int f_lineno
>     ctypedef _frame PyFrameObject
> 
> later, in a newframe function, I'm doing this to create the new frame object:
> 
>     cdef PyFrameObject *frame
> 
> When I try to compile the resulting C code, I get the following error:
> 
> _tbconstruct.c: In function `__pyx_f_12_tbconstruct_newframe':
> _tbconstruct.c:57: error: `__pyx_v_frame' undeclared (first use in
> this function)
> 
> 
> I've attached the code (it's very short). I'm compiling it with 
>     pyrexc _tbconstruct.pyx; gcc -c -fPIC -I/usr/include/python2.4
> _tbconstruct.c
> 
> 
> Thanks for any help.
> -- 
>   Twisted   |  Christopher Armstrong: International Man of Twistery
>    Radix    |    -- http://radix.twistedmatrix.com
>             |  Release Manager, Twisted Project
>   \\\V///   |    -- http://twistedmatrix.com
>    |o O|    |  
> w----v----w-+
> 


-- 
Simon Burton, B.Sc.
Licensed PO Box 8066
ANU Canberra 2601
Australia
Ph. 61 02 6249 6940
http://arrowtheory.com 
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