@@ -0,0 +1,166 @@
+class Error(Exception):%0A    pass%0A%0A%0Aclass FieldLookupError(Error):%0A    pass%0A%0A%0Aclass BadValueError(Error):%0A    pass%0A%0A%0Aclass DocumentClassRequiredError(Error):%0A    pass%0A

Move exceptions to their own module