Trying to manually add readline package to Travis-CI builds to see if that helps

tleonhardt · tleonhardt · commit a20d8b862caf · 2018-02-09T00:54:53.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,6 +2,11 @@ language: python
 
 sudo: false  # false enables container-based build for fast boot times on Linux
 
+addons:
+  apt:
+    packages:
+    - readline
+
 matrix:
     include:
         - os: linux
