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Issue #25447: The lru_cache() wrapper objects now can be copied and pickled

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(by returning the original object unchanged).
This commit is contained in:
Serhiy Storchaka 2015-10-24 09:49:56 +03:00
parent a7b83b43ff
commit 45120f272b
3 changed files with 66 additions and 2 deletions
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7
Modules/_functoolsmodule.c
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@ -1047,6 +1047,12 @@ lru_cache_cache_clear(lru_cache_object *self, PyObject *unused)
Py_RETURN_NONE;
}
static PyObject *
lru_cache_reduce(PyObject *self, PyObject *unused)
{
return PyObject_GetAttrString(self, "__qualname__");
}
static int
lru_cache_tp_traverse(lru_cache_object *self, visitproc visit, void *arg)
{
@ -1097,6 +1103,7 @@ cache_info_type: namedtuple class with the fields:\n\
static PyMethodDef lru_cache_methods[] = {
{"cache_info", (PyCFunction)lru_cache_cache_info, METH_NOARGS},
{"cache_clear", (PyCFunction)lru_cache_cache_clear, METH_NOARGS},
{"__reduce__", (PyCFunction)lru_cache_reduce, METH_NOARGS},
{NULL}
};