fix test issue with python 2.7

test/test_parser/test_representation.py

@@ -1,7 +1,8 @@
 from jedi.parser import Parser
+from jedi._compatibility import u
 
 
 def test_import_is_nested():
-    imp = Parser('import ').module.imports[0]
+    imp = Parser(u('import ')).module.imports[0]
     # should not raise an error, even if it's not a complete import
     assert not imp.is_nested()