Flake8 can ignore this imported code - a minor issue is flagged with …

…it since the release of flake8 3.7.0

.travis.yml

@@ -36,7 +36,7 @@ matrix:
       before_script:
         - flake8 --version
         # stop the build if there are Python syntax errors or undefined names
-        - flake8 . --count --select=E901,E999,F821,F822,F823 --show-source --statistics
+        - flake8 . --count --select=E901,E999,F821,F822,F823 --show-source --statistics --exclude ./ckan/include/rjsmin.py
         # exit-zero treats all errors as warnings.  The GitHub editor is 127 chars wide
         - flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
       script: