[Cython] [mailinglist] Re: problems with external data

[Stefan Behnel]

Uwe Schmitt wrote:
> Uwe Schmitt schrieb:
>> Stefan Behnel schrieb:
>>> Uwe Schmitt wrote:
>>>> > I got a problem in the following situatino when wrapping
>>>> > some c code:
>>>> >
>>>> > file svdlib.h contains:
>>>> >
>>>> >     extern char *SVDVersion;
>>>> >     extern long SVDVerbosity;
>>>> >
>>>> > file svlib.pyx begins with:
>>>> >
>>>> >     cdef extern from "svdlib.h" :
>>>> >
>>>> >         cdef extern long  SVDVerbosity
>>>> >         cdef extern char * SVDVersion
>
> I'm using  "print SVDVersion"
> and "print SVDVerbosity" which are translated as follows:
>
>      /*
>     "C:\cygwin\home\uschmitt\workspace_eclipse_ganymede\PySVDLIB\src\svdlibc.pyx":157
>      *     cdef SMat As
>      *
>      *     SVDVerbosity = verbosity             # <<<<<<<<<<<<<<
>      *     print SVDVerbosity
>      *     print SVDVersion
>      */
>       Py_INCREF(__pyx_v_verbosity);
>       Py_DECREF(__pyx_v_SVDVerbosity);
>       __pyx_v_SVDVerbosity = __pyx_v_verbosity;

Hmm, your code example is not very complete. An educated guess is that the
above code occurs inside a function, and the assignment to SVDVerbosity
makes it a local variable (normal Python behaviour). Since it hasn't been
declared, it has the normal Python object type.

I have no idea why you do this assignment, though. As I said, you could
help us in helping you by providing a relevant section of your code.

Stefan