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Issue #25447: Copying the lru_cache() wrapper object now always works,

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independedly from the type of the wrapped object (by returning the original
object unchanged).
This commit is contained in:
Serhiy Storchaka 2015-12-28 23:58:07 +02:00
parent 762d5ea875
commit e4d65e3aab
3 changed files with 32 additions and 2 deletions
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16
Modules/_functoolsmodule.c
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@ -1053,6 +1053,20 @@ lru_cache_reduce(PyObject *self, PyObject *unused)
return PyObject_GetAttrString(self, "__qualname__");
}
static PyObject *
lru_cache_copy(PyObject *self, PyObject *unused)
{
Py_INCREF(self);
return self;
}
static PyObject *
lru_cache_deepcopy(PyObject *self, PyObject *unused)
{
Py_INCREF(self);
return self;
}
static int
lru_cache_tp_traverse(lru_cache_object *self, visitproc visit, void *arg)
{
@ -1104,6 +1118,8 @@ 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},
{"__copy__", (PyCFunction)lru_cache_copy, METH_VARARGS},
{"__deepcopy__", (PyCFunction)lru_cache_deepcopy, METH_VARARGS},
{NULL}
};