Issue #10516: adding list.clear() and list.copy() methods

1 files changed, 20 insertions, 1 deletions

diff --git a/Objects/listobject.c b/Objects/listobject.c
index 2e0c8aa..9b2d36f 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -747,6 +747,19 @@ listinsert(PyListObject *self, PyObject *args)
 }
 
 static PyObject *
+listclear(PyListObject *self)
+{
+    list_clear(self);
+    Py_RETURN_NONE;
+}
+
+static PyObject *
+listcopy(PyListObject *self)
+{
+    return list_slice(self, 0, Py_SIZE(self));
+}
+
+static PyObject *
 listappend(PyListObject *self, PyObject *v)
 {
     if (app1(self, v) == 0)
@@ -2322,6 +2335,10 @@ PyDoc_STRVAR(reversed_doc,
 "L.__reversed__() -- return a reverse iterator over the list");
 PyDoc_STRVAR(sizeof_doc,
 "L.__sizeof__() -- size of L in memory, in bytes");
+PyDoc_STRVAR(clear_doc,
+"L.clear() -> None -- remove all items from L");
+PyDoc_STRVAR(copy_doc,
+"L.copy() -> list -- a shallow copy of L");
 PyDoc_STRVAR(append_doc,
 "L.append(object) -- append object to end");
 PyDoc_STRVAR(extend_doc,
@@ -2350,9 +2367,11 @@ static PyMethodDef list_methods[] = {
     {"__getitem__", (PyCFunction)list_subscript, METH_O|METH_COEXIST, getitem_doc},
     {"__reversed__",(PyCFunction)list_reversed, METH_NOARGS, reversed_doc},
     {"__sizeof__",  (PyCFunction)list_sizeof, METH_NOARGS, sizeof_doc},
+    {"clear",           (PyCFunction)listclear,   METH_NOARGS, clear_doc},
+    {"copy",            (PyCFunction)listcopy,   METH_NOARGS, copy_doc},
     {"append",          (PyCFunction)listappend,  METH_O, append_doc},
     {"insert",          (PyCFunction)listinsert,  METH_VARARGS, insert_doc},
-    {"extend",      (PyCFunction)listextend,  METH_O, extend_doc},
+    {"extend",          (PyCFunction)listextend,  METH_O, extend_doc},
     {"pop",             (PyCFunction)listpop,     METH_VARARGS, pop_doc},
     {"remove",          (PyCFunction)listremove,  METH_O, remove_doc},
     {"index",           (PyCFunction)listindex,   METH_VARARGS, index_doc},