SF patch 1546297 (with some tweaks):
Create a real zip iterator object; not using itertools.izip
(Brian Holmes).
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index 6ca2a28..200ec26 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1855,22 +1855,10 @@
static PyObject*
builtin_zip(PyObject *self, PyObject *args)
{
- PyObject *itertools = NULL, *izip = NULL, *result = NULL;
+ /* args must be a tuple */
+ assert(PyTuple_Check(args));
- itertools = PyImport_ImportModule("itertools");
- if (itertools == NULL)
- return NULL;
-
- izip = PyObject_GetAttrString(itertools, "izip");
- if (izip == NULL)
- goto done;
-
- result = PyObject_Call(izip, args, NULL);
-
- done:
- Py_XDECREF(itertools);
- Py_XDECREF(izip);
- return result;
+ return _PyZip_CreateIter(args);
}