remove 3.9 support

seyong92 · seyong92 · commit 03117d885410 · 2020-10-21T15:14:19.000+09:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,7 +3,6 @@ python:
   - "3.6"
   - "3.7"
   - "3.8"
-  - "3.9-dev"
 env:
   - NUMPY_VERSION=1.16.6
   - NUMPY_VERSION=1.17.5
