text: import virtualenv, textwrap
  output = virtualenv.create_bootstrap_script(textwrap.dedent("""
  import os, subprocess
  def after_install(options, home_dir):
      etc = join(home_dir, 'etc')
      if not os.path.exists(etc):
          os.makedirs(etc)
      subprocess.call([join(home_dir, 'bin', 'pip'),
                       'install', '-r', 'requirements.txt'])
  """))
  f = open('bootstrap.py', 'w').write(output)
  