test python 3.8

.travis.yml

@@ -23,6 +23,7 @@ python:
 - 3.5
 - 3.6
 - 3.7
+- 3.8
 - pypy
 - pypy3
 
@@ -50,7 +51,8 @@ matrix:
     env: MONGODB=${MONGODB_3_6} PYMONGO=${PYMONGO_3_6}
   - python: 3.7
     env: MONGODB=${MONGODB_3_6} PYMONGO=${PYMONGO_3_9}
-
+  - python: 3.8
+    env: MONGODB=${MONGODB_3_6} PYMONGO=${PYMONGO_3_9}
 
 install:
   # Install Mongo