pyenv versions and virtualenv always upgrade pip and add preferred packages

iknowitsdumbbutilikeit.txt

git clone https://github.com/jawshooah/pyenv-default-packages.git \
$(pyenv root)/plugins/pyenv-default-packages

python -c "\
import pip;
from os import environ
pipver=str(float('.'.join(pip.__version__.split('.')[:-1])));
pkgs=[pipver,'ipython', 'pipreqs', 'pytest', 'vulture'];
f=open(environ['PYENV_ROOT'] + '/default-packages','w');
f.write('pip > {}\n'.format('\n'.join(pkgs)));
f.close()"