Configure Travis jobs only for Python language.

ggeop · ggeop · commit 2f67b18a899d · 2020-04-26T15:04:15.000+03:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,3 +1,4 @@
+language: python
 matrix:
   include:
     - name: "Ubuntu 18.04 Job"
