THRIFT-1857 Python 3 Support
Client: Python
Patch: Nobuaki Sukegawa

Add py3 cross test
diff --git a/contrib/Vagrantfile b/contrib/Vagrantfile
index 2091110..3bcc46a 100644
--- a/contrib/Vagrantfile
+++ b/contrib/Vagrantfile
@@ -46,7 +46,7 @@
 sudo apt-get install -qq ant openjdk-7-jdk maven
 
 # Python dependencies
-sudo apt-get install -qq python-all python-all-dev python-all-dbg python-setuptools python-support python-six
+sudo apt-get install -qq python-all python-all-dev python-all-dbg python-setuptools python-support python-six python3-six
 
 # Ruby dependencies
 sudo apt-get install -qq ruby ruby-dev