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bpo-36430: Fix a possible reference leak in itertools.count(). (GH-12551) 

(cherry picked from commit 0523c39e77)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>
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Miss Islington (bot) 2019-03-25 23:26:42 -07:00 committed by GitHub
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commit e0fe25be1e
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Misc/NEWS.d/next/Core and Builtins/2019-03-25-23-37-26.bpo-36430.sd9xxQ.rst Normal file
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@ -0,0 +1 @@
Fix a possible reference leak in :func:`itertools.count`.

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Modules/itertoolsmodule.c
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@ -4027,6 +4027,7 @@ count_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
lz = (countobject *)type->tp_alloc(type, 0); lz = (countobject *)type->tp_alloc(type, 0);
if (lz == NULL) { if (lz == NULL) {
Py_XDECREF(long_cnt); Py_XDECREF(long_cnt);
Py_DECREF(long_step);
return NULL; return NULL;
} }
lz->cnt = cnt; lz->cnt = cnt;