Update virtualenv

BanzaiMan · BanzaiMan · commit 5d61caf50bb8 · 2016-07-12T15:38:06.000-04:00
So that it we can archive PyPy3.3-5.2-alpha1
diff --git a/.travis.yml b/.travis.yml
@@ -18,6 +18,7 @@ install:
 - sudo git checkout master
 - sudo git pull
 - popd
+- python -m pip install virtualenv
 
 before_script:
 - 'export INSTALL_DEST=${INSTALL_DEST:-/opt/python}'
