2 files changed, 17 insertions, 11 deletions
diff --git a/Python/Python-ast.c b/Python/Python-ast.c
index 2603b812f0..1178d74d7f 100644
--- a/Python/Python-ast.c
+++ b/Python/Python-ast.c
@@ -1,5 +1,7 @@
 /* File automatically generated by Parser/asdl_c.py. */
 
+#include <stddef.h>
+
 #include "Python.h"
 #include "Python-ast.h"
 
@@ -453,6 +455,11 @@ static char *withitem_fields[]={
 };
 
 
+typedef struct {
+    PyObject_HEAD
+    PyObject *dict;
+} AST_object;
+
 static int
 ast_type_init(PyObject *self, PyObject *args, PyObject *kw)
 {
@@ -531,10 +538,15 @@ static PyMethodDef ast_type_methods[] = {
     {NULL}
 };
 
+static PyGetSetDef ast_type_getsets[] = {
+    {"__dict__", PyObject_GenericGetDict, PyObject_GenericSetDict},
+    {NULL}
+};
+
 static PyTypeObject AST_type = {
     PyVarObject_HEAD_INIT(&PyType_Type, 0)
     "_ast.AST",
-    sizeof(PyObject),
+    sizeof(AST_object),
     0,
     0,                       /* tp_dealloc */
     0,                       /* tp_print */
@@ -561,12 +573,12 @@ static PyTypeObject AST_type = {
     0,                       /* tp_iternext */
     ast_type_methods,        /* tp_methods */
     0,                       /* tp_members */
-    0,                       /* tp_getset */
+    ast_type_getsets,        /* tp_getset */
     0,                       /* tp_base */
     0,                       /* tp_dict */
     0,                       /* tp_descr_get */
     0,                       /* tp_descr_set */
-    0,                       /* tp_dictoffset */
+    offsetof(AST_object, dict),/* tp_dictoffset */
     (initproc)ast_type_init, /* tp_init */
     PyType_GenericAlloc,     /* tp_alloc */
     PyType_GenericNew,       /* tp_new */
diff --git a/Python/ast.c b/Python/ast.c
index 0f93098712..eb8aed2a2e 100644
--- a/Python/ast.c
+++ b/Python/ast.c
@@ -1153,7 +1153,7 @@ seq_for_testlist(struct compiling *c, const node *n)
 }
 
 static arg_ty
-compiler_arg(struct compiling *c, const node *n)
+ast_for_arg(struct compiling *c, const node *n)
 {
     identifier name;
     expr_ty annotation = NULL;
@@ -1174,12 +1174,6 @@ compiler_arg(struct compiling *c, const node *n)
     }
 
     return arg(name, annotation, c->c_arena);
-#if 0
-    result = Tuple(args, Store, LINENO(n), n->n_col_offset, c->c_arena);
-    if (!set_context(c, result, Store, n))
-        return NULL;
-    return result;
-#endif
 }
 
 /* returns -1 if failed to handle keyword only arguments
@@ -1367,7 +1361,7 @@ ast_for_arguments(struct compiling *c, const node *n)
                              "non-default argument follows default argument");
                     return NULL;
                 }
-                arg = compiler_arg(c, ch);
+                arg = ast_for_arg(c, ch);
                 if (!arg)
                     return NULL;
                 asdl_seq_SET(posargs, k++, arg);