Merge pull request #185 from mapbox/pratik/deploy-version

Use python 3.8 for release

Author: pratikyadav

.travis.yml

@@ -3,6 +3,8 @@ dist: bionic
 python:
   - '3.6'
   - '3.7'
+  - '3.8'
+
 install:
   - pip install -U setuptools "importlib-metadata==4.8.3"
   - pip install -r requirements.txt -e .[test]
@@ -19,5 +21,5 @@ deploy:
   password: $PYPI_PASSWORD
   distributions: "sdist bdist_wheel"
   on:
-    python: 3.7
+    python: 3.8
     tags: true