I would like to revert the following pull request. https://github.com/apache/incubator-heron/pull/3431
The pull request was to upgrade from Python 2 to Python 3, but I don't think the pull request was fully tested. Myself and others are having issues with the current state of the repo. I propose that we revert this pull request, create a new draft pull request. We can work together to complete the initial effort. The PR to revert is captured here: https://github.com/apache/incubator-heron/pull/3478 Thanks, Nick
