From a618ad07736e22ff2bc7d35ae8cf038bf3661585 Mon Sep 17 00:00:00 2001
From: Steven Silvester <steven.silvester@ieee.org>
Date: Thu, 9 Oct 2014 21:26:59 -0500
Subject: [PATCH] Make sure there is no previous matplotlib or scipy

---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index bdfb8566..78653fa8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,7 +23,7 @@ before_install:
     - sudo apt-get update
 
     - travis_retry pip install wheel flake8 coveralls nose
-    - travis_retry pip uninstall -y numpy
+    - travis_retry pip uninstall -y numpy matplotlib scipy
 
     # on Python 2.7, use the system versions of numpy, scipy, and matplotlib
     # and the minimum version of cython and networkx