Get rid of Python 3.3 artifacts

test/test_python_errors.py

@@ -37,8 +37,7 @@ def test_python_exception_matches(code):
         error, = errors
         actual = error.message
     assert actual in wanted
-    # Somehow in Python3.3 the SyntaxError().lineno is sometimes None
-    assert line_nr is None or line_nr == error.start_pos[0]
+    assert line_nr == error.start_pos[0]
 
 
 def test_non_async_in_async():