From 4fb80b8f40f5dc5ca4d632cdce736326d1f5d9a6 Mon Sep 17 00:00:00 2001
From: Steven Silvester <steven.silvester@ieee.org>
Date: Wed, 15 Jul 2015 10:07:46 -0500
Subject: [PATCH] Add an explicit pip cache since we override the install step

---
 .travis.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 61c1d688..442264ab 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,9 @@
 
 language: python
 sudo: false
-cache: pip
+cache:
+  directories:
+    - $HOME/.cache/pip
 addons:
   apt:
     packages: