travis: add graphviz to deps

6 years ago · 8030b6ce38
parent d56c8abf9d
commit 8030b6ce38
1 changed files with 5 additions and 0 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -8,6 +8,11 @@ cache:
  directories:
    - $HOME/.cache/pip

+addons:
+    apt:
+        packages:
+            - graphviz
+
 python:
    - "3.6"