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Issue 7410: deepcopy of itertools.count resets the count

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This commit is contained in:
Raymond Hettinger 2009-11-30 19:44:40 +00:00
parent d46430bd81
commit e09f45a2e3
2 changed files with 25 additions and 1 deletions
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17
Modules/itertoolsmodule.c
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@ -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 */