* https://travis-ci.org/salesforce
* https://travis-ci.org/salesforce/decaNLPhttp://flake8.pycqa.org will flag the Travis CI build if there are Python syntax errors or undefined names.
E901,E999,F821,F822,F823 are the "showstopper" flake8 issues that can halt the runtime with a SyntaxError, NameError, etc. Most other flake8 issues are merely "style violations" -- useful for readability but they do not effect runtime safety. This PR therefore recommends a flake8 run of these tests on the entire codebase.
F821: undefined name name
F822: undefined name name in __all__
F823: local variable name referenced before assignment
E901: SyntaxError or IndentationError
E999: SyntaxError -- failed to compile a file into an Abstract Syntax Tree
Giovanni Campagna