pipdeps.py

    if arguments.upgrade:
        upkgs = select_upkgs(data, upgradeable_version)
        to_upgrade =[]
        for pkg in sorted(upkgs):
            to_upgrade.append((pkg, packages_data[pkg]['upgradeable_version']))
        upgrade_package(to_upgrade)
        print "Done."

if __name__ == "__main__":
    main()