#!/usr/bin/env python

import os 
import pip

dists = []
for dist in pip.get_installed_distributions():
    dists.append(dist.project_name)

for dist_name in sorted(dists, key=lambda s: s.lower()):
    cmd = "sudo pip install {0} -U".format(dist_name)
    print '#', cmd
    #os.system(cmd)