From d2f0bc235022fc7c8ebf4fc2d820f4b423ccd15b Mon Sep 17 00:00:00 2001
From: Ian Cordasco <graffatcolmingov@gmail.com>
Date: Wed, 23 Nov 2016 17:26:13 -0600
Subject: [PATCH] Install tox in a virtualenv

Since TravisCI has an extremely old version of PyPy, we need to use
pyenv to install a more recent version. However, pyenv's shims don't
persist between the install and script portions of Travis. So we have to
use a virtualenv so Travis can find the tox command.
---
 .travis.yml        | 1 +
 .travis/install.sh | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index f1bd1014..cdb66351 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,4 +25,5 @@ install:
     - ./.travis/install.sh
 
 script:
+  - source ~/.venv/bin/activate
   - tox
diff --git a/.travis/install.sh b/.travis/install.sh
index 270c733a..da427a65 100755
--- a/.travis/install.sh
+++ b/.travis/install.sh
@@ -8,10 +8,10 @@ if [[ "${TOXENV}" = pypy* ]]; then
     pyenv install "pypy-$PYPY_VERSION"
     pyenv global "pypy-$PYPY_VERSION"
 
-    pip install --upgrade tox
-
     pyenv rehash
 fi
 
-
+python -m pip install --upgrade virtualenv
+python -m virtualenv ~/.venv
+source ~/.venv/bin/activate
 pip install --upgrade tox