fix linux build

Francesco Faraone · Francesco Faraone · commit a8fddf483066 · 2020-09-14T11:35:52.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,7 @@
 jobs:
   include:
   - os: linux
+    language: python
     python: 3.8
     dist: xenial
     sudo: true
