[Numpy-discussion] memory not being freed

Hi I'm having problems with garbage collection I wrote an extension which creates an array and returns it foo() { arr = (PyArrayObject *) PyArray_FromDims( ..... ret = Py_BuildValue("O", arr); return ret; } but now if I do while 1: a=foo() memory is never free'd. I've even tried explicitly calling gc.collect and adding del(a) after a=foo. Is the problem that Py_BuildValue increases the reference count? Mathew