From 33554635d476ceac44298d343123cacf96022ac0 Mon Sep 17 00:00:00 2001
From: Olivier Mangin <olivier@mangin.com>
Date: Fri, 2 Mar 2018 14:11:57 -0500
Subject: [PATCH] Upgrade python if install fails.

---
 .travis.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 5fdfe4b..2b1ccc1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,8 @@ matrix:
         - "3"
       before_install:
         - brew update
-        - brew install python3
+        - brew outdated python3 || brew install python3 || brew upgrade python3
+        - pip install -U virtualenv
         - virtualenv env -p python3
         - source env/bin/activate
 # command to install dependencies