This one does Python but we could add other languages.

Travis CI can be used to do automated testing on all pull requests before they are reviewed and merged. This service is free to open source projects like this one. The Continuous Integration service must be turned on by @w1109790800 logging into https://travis-ci.com/w1109790800 with GitHub credentials and turning on the switch for this repo.

This config will have http://flake8.pycqa.org flag the 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

Run some automated testing...