Tip: Use 3.8-dev on Travis CI to help test 3.8 beta

[hugovk (Hugo van Kemenade)]

The last planned beta, Python 3.8.0b4, is out and 3.8-dev on Travis CI is now Python 3.8.0b4+.

Maintainers, please add 3.8-dev to your .travis.yml!

ACTION REQUIRED: Python 3.8.0b4 available for testing

It’s time for the last beta release of Python 3.8. Go find it at: This release is the last of four planned beta release previews. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release. The next pre-release of Python 3.8 will be 3.8.0rc1, the first release candidate, currently scheduled for 2019-09-30. Call to action We strongly encourage maintainers of third-party …