diff -r 20f18e5e8bfc Modules/_decimal/_decimal.c
--- a/Modules/_decimal/_decimal.c	Sat Jan 07 00:08:29 2017 +0100
+++ b/Modules/_decimal/_decimal.c	Sat Jan 07 10:23:45 2017 +0200
@@ -518,9 +518,13 @@ getround(PyObject *v)
             }
         }
         for (i = 0; i < _PY_DEC_ROUND_GUARD; i++) {
-            if (PyUnicode_Compare(v, round_map[i]) == 0) {
+            int cmp = PyUnicode_Compare(v, round_map[i]);
+            if (cmp == 0) {
                 return i;
             }
+            if (cmp < 0 && PyErr_Occurred()) {
+                return -1;
+            }
         }
     }
 
diff -r 20f18e5e8bfc Modules/_pickle.c
--- a/Modules/_pickle.c	Sat Jan 07 00:08:29 2017 +0100
+++ b/Modules/_pickle.c	Sat Jan 07 10:23:45 2017 +0200
@@ -1560,9 +1560,9 @@ memo_put(PicklerObject *self, PyObject *
 }
 
 static PyObject *
-get_dotted_path(PyObject *obj, PyObject *name) {
+get_dotted_path(PyObject *obj, PyObject *name)
+{
     _Py_static_string(PyId_dot, ".");
-    _Py_static_string(PyId_locals, "<locals>");
     PyObject *dotted_path;
     Py_ssize_t i, n;
 
@@ -1573,12 +1573,7 @@ get_dotted_path(PyObject *obj, PyObject 
     assert(n >= 1);
     for (i = 0; i < n; i++) {
         PyObject *subpath = PyList_GET_ITEM(dotted_path, i);
-        PyObject *result = PyUnicode_RichCompare(
-            subpath, _PyUnicode_FromId(&PyId_locals), Py_EQ);
-        int is_equal = (result == Py_True);
-        assert(PyBool_Check(result));
-        Py_DECREF(result);
-        if (is_equal) {
+        if (_PyUnicode_EqualToASCIIString(subpath, "<locals>")) {
             if (obj == NULL)
                 PyErr_Format(PyExc_AttributeError,
                              "Can't pickle local object %R", name);
@@ -3549,12 +3544,10 @@ save_reduce(PicklerObject *self, PyObjec
         }
         else if (PyUnicode_Check(name)) {
             _Py_IDENTIFIER(__newobj_ex__);
-            use_newobj_ex = PyUnicode_Compare(
-                    name, _PyUnicode_FromId(&PyId___newobj_ex__)) == 0;
+            use_newobj_ex = _PyUnicode_EqualToASCIIId(name, &PyId___newobj_ex__);
             if (!use_newobj_ex) {
                 _Py_IDENTIFIER(__newobj__);
-                use_newobj = PyUnicode_Compare(
-                        name, _PyUnicode_FromId(&PyId___newobj__)) == 0;
+                use_newobj = _PyUnicode_EqualToASCIIId(name, &PyId___newobj__);
             }
         }
         Py_XDECREF(name);