installing distribute after pyenv created

myenv.py

#!/opt/python-3.3.0rc1/bin/python3.3
import venv
import sys
import argparse
import subprocess

import os

here = os.path.dirname(__file__)


class MyEnvBuilder(venv.EnvBuilder):
    def post_setup(self, context):
        print('Install distribute')
        subprocess.call([context.env_exe, os.path.join(here, 'distribute_setup.py')])

def main(args=sys.argv[1:]):
    parser = argparse.ArgumentParser()
    parser.add_argument('--system-site-packages', default=False, action="store_true")
    parser.add_argument('--clear', default=False, action="store_true")
    parser.add_argument('--symlinks', default=False, action="store_true")
    parser.add_argument('--upgrade', default=False, action="store_true")
    parser.add_argument('env_dir')

    args = parser.parse_args(args)

    builder = MyEnvBuilder(system_site_packages=args.system_site_packages,
        clear=args.clear,
        symlinks=args.symlinks,
        upgrade=args.upgrade)

    builder.create(args.env_dir)

if __name__ == '__main__':
    main()