pypy

install

V=pypy3-v5.9.0-linux64.tar.bz2
cd /tmp
wget https://bitbucket.org/pypy/pypy/downloads/$V
sudo tar -C /opt -xvf /tmp/$V
sudo ln -sf /opt/$V/bin/pypy3 /usr/local/bin

create virtualenv

pypy3 -mvenv /tmp/lib