gcc
libffi-dev
libmysqlclient-dev  # testonly
libpq-dev           # testonly
libssl-dev          # testonly
libxml2-dev
libxslt1-dev        # testonly
python-eventlet
python-routes
python-greenlet
python-sqlalchemy
python-wsgiref
python-pastedeploy
python-xattr
python-iso8601
zlib1g-dev           # testonly