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-rw-r--r--Modules/itertoolsmodule.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
index 1a0d44dfc7..6b5c249f00 100644
--- a/Modules/itertoolsmodule.c
+++ b/Modules/itertoolsmodule.c
@@ -3375,6 +3375,21 @@ count_repr(countobject *lz)
return result;
}
+static PyObject *
+count_reduce(countobject *lz)
+{
+ if (lz->cnt == PY_SSIZE_T_MAX)
+ return Py_BuildValue("O(O)", Py_TYPE(lz), lz->long_cnt);
+ return Py_BuildValue("O(n)", Py_TYPE(lz), lz->cnt);
+}
+
+PyDoc_STRVAR(count_reduce_doc, "Return state information for pickling.");
+
+static PyMethodDef count_methods[] = {
+ {"__reduce__", (PyCFunction)count_reduce, METH_NOARGS,
+ count_reduce_doc},
+};
+
PyDoc_STRVAR(count_doc,
"count(start=0, step=1]) --> count object\n\
\n\
@@ -3416,7 +3431,7 @@ static PyTypeObject count_type = {
0, /* tp_weaklistoffset */
PyObject_SelfIter, /* tp_iter */
(iternextfunc)count_next, /* tp_iternext */
- 0, /* tp_methods */
+ count_methods, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */