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Iterating generator from C

I am working on project that has embedded python interpreter to run
user-specified python procedures. Those procedures might return any
iterable object with set of result data -- basically everything for which
iter() returns valid object (list, tuple, dict, iterator etc)

It works ok, except generator under Python 2.4 with debugging enabled (see

Is there any way to rewrite following program to handle returned generator
without hitting this bug?
Error handling is omitted for clarity.

#include <Python.h>

const char *py_source =
"def fn():\n"
" yield 1\n";

int main ()
Py_Initialize() ;

PyObject *globals = PyDict_New();

// insert function code into interpreter
PyObject *code = PyRun_String(py _source, Py_file_input, globals, NULL);
Py_DECREF(code) ;

// do call
code = Py_CompileStrin g("fn()", "<string>", Py_eval_input);
PyObject *gen = PyEval_EvalCode ((PyCodeObject *)code, globals, NULL);

// iterate result
PyObject *item;
while ((item = PyIter_Next(gen ))) {
printf("> %ld\n", PyInt_AsLong(it em));
Py_DECREF(item) ;

Py_DECREF(code) ;
Py_DECREF(globa ls);

return 0;
Sven Suursoho
May 13 '06 #1
0 1266

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