diff options
Diffstat (limited to 'Modules/itertoolsmodule.c')
| -rw-r--r-- | Modules/itertoolsmodule.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c index bf2c49311f..3da0258eef 100644 --- a/Modules/itertoolsmodule.c +++ b/Modules/itertoolsmodule.c @@ -75,7 +75,7 @@ groupby_traverse(groupbyobject *gbo, visitproc visit, void *arg) static PyObject * groupby_next(groupbyobject *gbo) { - PyObject *newvalue, *newkey, *r, *grouper; + PyObject *newvalue, *newkey, *r, *grouper, *tmp; /* skip to next iteration group */ for (;;) { @@ -110,15 +110,19 @@ groupby_next(groupbyobject *gbo) } } - Py_XDECREF(gbo->currkey); + tmp = gbo->currkey; gbo->currkey = newkey; - Py_XDECREF(gbo->currvalue); + Py_XDECREF(tmp); + + tmp = gbo->currvalue; gbo->currvalue = newvalue; + Py_XDECREF(tmp); } - Py_XDECREF(gbo->tgtkey); - gbo->tgtkey = gbo->currkey; Py_INCREF(gbo->currkey); + tmp = gbo->tgtkey; + gbo->tgtkey = gbo->currkey; + Py_XDECREF(tmp); grouper = _grouper_create(gbo, gbo->tgtkey); if (grouper == NULL) |