Index: Lib/test/test_parser.py
===================================================================
--- Lib/test/test_parser.py     (revision 61352)
+++ Lib/test/test_parser.py     (working copy)
@@ -45,6 +45,7 @@
         self.check_suite("def f():\n"
                          "    if (yield):\n"
                          "        yield x\n")
+        self.check_suite('"\u1234"')
 
     def test_expressions(self):
         self.check_expr("foo(1)")
@@ -84,6 +85,7 @@
         self.check_expr("lambda x, *y, **z: 0")
         self.check_expr("(x for x in range(10))")
         self.check_expr("foo(x for x in range(10))")
+        self.check_expr('"\u1234"')
 
     def test_simple_expression(self):
         # expr_stmt
Index: Modules/parsermodule.c
===================================================================
--- Modules/parsermodule.c      (revision 61352)
+++ Modules/parsermodule.c      (working copy)
@@ -498,11 +498,12 @@
 parser_do_parse(PyObject *args, PyObject *kw, char *argspec, int type)
 {
     char*     string = 0;
+    int len = 0;
     PyObject* res    = 0;
 
     static char *keywords[] = {"source", NULL};
 
-    if (PyArg_ParseTupleAndKeywords(args, kw, argspec, keywords, &string)) {
+    if (PyArg_ParseTupleAndKeywords(args, kw, argspec, keywords, &string, &len)) {
         node* n = PyParser_SimpleParseString(string,
                                              (type == PyST_EXPR)
                                              ? eval_input : file_input);
@@ -526,7 +527,7 @@
 parser_expr(PyST_Object *self, PyObject *args, PyObject *kw)
 {
     NOTE(ARGUNUSED(self))
-    return (parser_do_parse(args, kw, "s:expr", PyST_EXPR));
+    return (parser_do_parse(args, kw, "s#:expr", PyST_EXPR));
 }
 
 
@@ -534,7 +535,7 @@
 parser_suite(PyST_Object *self, PyObject *args, PyObject *kw)
 {
     NOTE(ARGUNUSED(self))
-    return (parser_do_parse(args, kw, "s:suite", PyST_SUITE));
+    return (parser_do_parse(args, kw, "s#:suite", PyST_SUITE));
 }
 
 
@@ -717,9 +718,9 @@
                     Py_DECREF(o);
                 }
             }
-            temp_str = PyUnicode_AsString(temp);
-            len = PyUnicode_GET_SIZE(temp) + 1;
-            strn = (char *)PyObject_MALLOC(len);
+            temp_str = PyUnicode_AsStringAndSize(temp, &len);
+            strn = (char *)PyObject_MALLOC(len + 1);
+            strn[len] = '\0';
             if (strn != NULL)
                 (void) memcpy(strn, temp_str, len);
             Py_DECREF(temp);