Added venv

Aldemuro · Aldemuro · commit 969849df185c · 2020-03-30T18:16:22.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,6 +3,8 @@ python:
   - "3.4"
   - "3.5"
   - "3.6"
+virtualenv:
+  system_site_packages: true
 
 jobs:
   include:
