Stable python 3.8.0
Python 3.8.0 stable release is now available on travis https://travis-ci.community/t/add-python-3-8-support/5463 we can use it?

The 3.8-dev snapshot seemed to cause some issues here:
https://travis-ci.org/pandas-dev/pandas/jobs/606411398?utm_medium=notification&utm_source=github_status

related - https://github.com/pandas-dev/pandas/issues/26626