From 9c7f5bd93f840e69d8dfb96db023001b64fa7b28 Mon Sep 17 00:00:00 2001
From: Jon Dufresne <jon.dufresne@gmail.com>
Date: Sun, 16 Apr 2017 09:40:50 -0700
Subject: [PATCH] Enable pip caching support for Travis CI

https://docs.travis-ci.com/user/caching/#pip-cache
---
 .travis.yml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index c5ffd833..65b92622 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,9 +9,7 @@ python:
 
 sudo: false
 
-cache:
-  directories:
-    - $HOME/.cache/pip
+cache: pip
 
 env:
   - USE_OPTIONAL=true