How to prevent the need for token for public projects (jenkins)

Reading over https://github.com/codecov/codecov-python/blob/master/codecov/__init__.py it looks like to me the only reason you need to provide --token= for jenkins and not travis, is because job is set for travis?

Why isn't job set to something (BUILD_NUMBER, or timestamp) for jenkins?

That way token wouldn't be required for public projects.
