@@ -239,7 +239,8 @@ internal override bool ExposesLocalVariable(PythonVariable variable) {
 
         internal override bool TryBindOuter(ScopeStatement from, PythonReference reference, out PythonVariable variable) {
             ContainsNestedFreeVariables = true;
-            if (TryGetVariable(reference.Name, out variable) && variable.Kind != VariableKind.Nonlocal) {
+            if (TryGetVariable(reference.Name, out variable)) {
+                Debug.Assert(variable.Kind != VariableKind.Nonlocal, "there should be no nonlocals in a comprehension");
                 variable.AccessedInNestedScope = true;
 
                 if (variable.Kind == VariableKind.Local || variable.Kind == VariableKind.Parameter) {
 
@@ -570,9 +570,6 @@ Ignore=true
 IsolationLevel=ENGINE
 MaxRecursion=100
 
-[CPython.test_listcomps]
-Ignore=true
-
 [CPython.test_locale]
 Ignore=true
 
@@ -831,9 +828,6 @@ Ignore=true
 RunCondition=NOT $(IS_MONO) # weakref failures; https://github.com/IronLanguages/ironpython3/issues/544
 IsolationLevel=PROCESS # Also weakref failures; https://github.com/IronLanguages/ironpython3/issues/489
 
-[CPython.test_setcomps]
-Ignore=true
-
 [CPython.test_shelve]
 NotParallelSafe=true