- Add Python testing to the Travis-CI
- pip moved away from holding pep425tags in their codebase in pip version 20+, so we just import from wheel instead.
- The way we resolved requirement specs was not the most robust. We can just use pkg_resources's Requirement class functionality instead of writing our own. In particular, our original implementation did not work with "~=".
- Removed a number of tests that were redundant. These tests were fine when run on the user machine, but when run on the Travis-CI server they will time out.
Jonathan Zhu
Jonathan Zhu