Add Python 3.7 support to Travis CI testing

[roycaihw]

Python 3.7 is released and we need to add it to our ci

• Currently workaround exists but 3.7 isn't officially supported by travis ci: Add Python 3.7 option travis-ci/travis-ci#9815

[sellers]

see #558

[Lawouach]

Hey folks,

Just a friendly ping to know the status of this one. Following #558, a fix was merged but I'm a little confused about what needs to be addressed still? Also, as this a breaking change (we have moved to Python 3.7 and currently can't use the kube client with it), is there a potential ETA by any chance? :)

Thanks :)

edit: I think I can just do pip install --pre --upgrade kubernetes for now :)

[eastlondoner]

I made a PR to update the client code in the 6.0 branch: #682

[roycaihw]

This issue is about testing this client in Travis CI with Python 3.7. The client itself already resolved the reserved keyword conflict since 7.0.0a1 release: https://github.com/kubernetes-client/python/blob/master/CHANGELOG.md#v700a1

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[k8s-ci-robot]

@fejta-bot: Closing this issue.

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