text: #!python
  """Bootstrap setuptools installation
  
  If you want to use setuptools in your package's setup.py, just include this
  file in the same directory with it, and add this to the top of your setup.py::
  
      from ez_setup import use_setuptools
      use_setuptools()
  
  If you want to require a specific version of setuptools, set a download
  mirror, or use an alternate download directory, you can do so by supplying
  the appropriate options to ``use_setuptools()``.
  
  This file can also be run as a script to install or upgrade setuptools.
  """
  import sys
  DEFAULT_VERSION = "0.6c12"
  DEFAULT_URL     = "http://pypi.python.org/packages/%s/s/setuptools/" % sys.version[:3]
  
  md5_data = {
      'setuptools-0.6b1-py2.3.egg': '8822caf901250d848b996b7f25c6e6ca',
      'setuptools-0.6b1-py2.4.egg': 'b79a8a403e4502fbb85ee3f1941735cb',
      'setuptools-0.6b2-py2.3.egg': '5657759d8a6d8fc44070a9d07272d99b',
      'setuptools-0.6b2-py2.4.egg': '4996a8d169d2be661fa32a6e52e4f82a',
      'setuptools-0.6b3-py2.3.egg': 'bb31c0fc7399a63579975cad9f5a0618',
      'setuptools-0.6b3-py2.4.egg': '38a8c6b3d6ecd22247f179f7da669fac',
      'setuptools-0.6b4-py2.3.egg': '62045a24ed4e1ebc77fe039aa4e6f7e5',
      'setuptools-0.6b4-py2.4.egg': '4cb2a185d228dacffb2d17f103b3b1c4',
      'setuptools-0.6c1-py2.3.egg': 'b3f2b5539d65cb7f74ad79127f1a908c',
      'setuptools-0.6c1-py2.4.egg': 'b45adeda0667d2d2ffe14009364f2a4b',
      'setuptools-0.6c10-py2.3.egg': 'ce1e2ab5d3a0256456d9fc13800a7090',
      'setuptools-0.6c10-py2.4.egg': '57d6d9d6e9b80772c59a53a8433a5dd4',
      'setuptools-0.6c10-py2.5.egg': 'de46ac8b1c97c895572e5e8596aeb8c7',
      'setuptools-0.6c10-py2.6.egg': '58ea40aef06da02ce641495523a0b7f5',
      'setuptools-0.6c11-py2.3.egg': '2baeac6e13d414a9d28e7ba5b5a596de',
      'setuptools-0.6c11-py2.4.egg': 'bd639f9b0eac4c42497034dec2ec0c2b',
      'setuptools-0.6c11-py2.5.egg': '64c94f3bf7a72a13ec83e0b24f2749b2',
      'setuptools-0.6c11-py2.6.egg': 'bfa92100bd772d5a213eedd356d64086',
      'setuptools-0.6c2-py2.3.egg': 'f0064bf6aa2b7d0f3ba0b43f20817c27',
      'setuptools-0.6c2-py2.4.egg': '616192eec35f47e8ea16cd6a122b7277',
      'setuptools-0.6c3-py2.3.egg': 'f181fa125dfe85a259c9cd6f1d7b78fa',
      'setuptools-0.6c3-py2.4.egg': 'e0ed74682c998bfb73bf803a50e7b71e',
      'setuptools-0.6c3-py2.5.egg': 'abef16fdd61955514841c7c6bd98965e',
      'setuptools-0.6c4-py2.3.egg': 'b0b9131acab32022bfac7f44c5d7971f',
      'setuptools-0.6c4-py2.4.egg': '2a1f9656d4fbf3c97bf946c0a124e6e2',
      'setuptools-0.6c4-py2.5.egg': '8f5a052e32cdb9c72bcf4b5526f28afc',
      'setuptools-0.6c5-py2.3.egg': 'ee9fd80965da04f2f3e6b3576e9d8167',
      'setuptools-0.6c5-py2.4.egg': 'afe2adf1c01701ee841761f5bcd8aa64',
      'setuptools-0.6c5-py2.5.egg': 'a8d3f61494ccaa8714dfed37bccd3d5d',
      'setuptools-0.6c6-py2.3.egg': '35686b78116a668847237b69d549ec20',
      'setuptools-0.6c6-py2.4.egg': '3c56af57be3225019260a644430065ab',
      'setuptools-0.6c6-py2.5.egg': 'b2f8a7520709a5b34f80946de5f02f53',
      'setuptools-0.6c7-py2.3.egg': '209fdf9adc3a615e5115b725658e13e2',
      'setuptools-0.6c7-py2.4.egg': '5a8f954807d46a0fb67cf1f26c55a82e',
      'setuptools-0.6c7-py2.5.egg': '45d2ad28f9750e7434111fde831e8372',
      'setuptools-0.6c8-py2.3.egg': '50759d29b349db8cfd807ba8303f1902',
      'setuptools-0.6c8-py2.4.egg': 'cba38d74f7d483c06e9daa6070cce6de',
      'setuptools-0.6c8-py2.5.egg': '1721747ee329dc150590a58b3e1ac95b',
      'setuptools-0.6c9-py2.3.egg': 'a83c4020414807b496e4cfbe08507c03',
      'setuptools-0.6c9-py2.4.egg': '260a2be2e5388d66bdaee06abec6342a',
      'setuptools-0.6c9-py2.5.egg': 'fe67c3e5a17b12c0e7c541b7ea43a8e6',
      'setuptools-0.6c9-py2.6.egg': 'ca37b1ff16fa2ede6e19383e7b59245a',
  }
  
  import sys, os
  try: from hashlib import md5
  except ImportError: from md5 import md5
  
  def _validate_md5(egg_name, data):
      if egg_name in md5_data:
          digest = md5(data).hexdigest()
          if digest != md5_data[egg_name]:
              print >>sys.stderr, (
                  "md5 validation of %s failed!  (Possible download problem?)"
                  % egg_name
              )
              sys.exit(2)
      return data
  
  def use_setuptools(
      version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
      download_delay=15
  ):
      """Automatically find/download setuptools and make it available on sys.path
  
      `version` should be a valid setuptools version number that is available
      as an egg for download under the `download_base` URL (which should end with
      a '/').  `to_dir` is the directory where setuptools will be downloaded, if
      it is not already available.  If `download_delay` is specified, it should
      be the number of seconds that will be paused before initiating a download,
      should one be required.  If an older version of setuptools is installed,
      this routine will print a message to ``sys.stderr`` and raise SystemExit in
      an attempt to abort the calling script.
      """
      was_imported = 'pkg_resources' in sys.modules or 'setuptools' in sys.modules
      def do_download():
          egg = download_setuptools(version, download_base, to_dir, download_delay)
          sys.path.insert(0, egg)
          import setuptools; setuptools.bootstrap_install_from = egg
      try:
          import pkg_resources
      except ImportError:
          return do_download()       
      try:
          pkg_resources.require("setuptools>="+version); return
      except pkg_resources.VersionConflict, e:
          if was_imported:
              print >>sys.stderr, (
              "The required version of setuptools (>=%s) is not available, and\n"
              "can't be installed while this script is running. Please install\n"
              " a more recent version first, using 'easy_install -U setuptools'."
              "\n\n(Currently using %r)"
              ) % (version, e.args[0])
              sys.exit(2)
          else:
              del pkg_resources, sys.modules['pkg_resources']    # reload ok
              return do_download()
      except pkg_resources.DistributionNotFound:
          return do_download()
  
  def download_setuptools(
      version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
      delay = 15
  ):
      """Download setuptools from a specified location and return its filename
  
      `version` should be a valid setuptools version number that is available
      as an egg for download under the `download_base` URL (which should end
      with a '/'). `to_dir` is the directory where the egg will be downloaded.
      `delay` is the number of seconds to pause before an actual download attempt.
      """
      import urllib2, shutil
      egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3])
      url = download_base + egg_name
      saveto = os.path.join(to_dir, egg_name)
      src = dst = None
      if not os.path.exists(saveto):  # Avoid repeated downloads
          try:
              from distutils import log
              if delay:
                  log.warn("""
  ---------------------------------------------------------------------------
  This script requires setuptools version %s to run (even to display
  help).  I will attempt to download it for you (from
  %s), but
  you may need to enable firewall access for this script first.
  I will start the download in %d seconds.
  
  (Note: if this machine does not have network access, please obtain the file
  
     %s
  
  and place it in this directory before rerunning this script.)
  ---------------------------------------------------------------------------""",
                      version, download_base, delay, url
                  ); from time import sleep; sleep(delay)
              log.warn("Downloading %s", url)
              src = urllib2.urlopen(url)
              # Read/write all in one block, so we don't create a corrupt file
              # if the download is interrupted.
              data = _validate_md5(egg_name, src.read())
              dst = open(saveto,"wb"); dst.write(data)
          finally:
              if src: src.close()
              if dst: dst.close()
      return os.path.realpath(saveto)
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  def main(argv, version=DEFAULT_VERSION):
      """Install or upgrade setuptools and EasyInstall"""
      try:
          import setuptools
      except ImportError:
          egg = None
          try:
              egg = download_setuptools(version, delay=0)
              sys.path.insert(0,egg)
              from setuptools.command.easy_install import main
              return main(list(argv)+[egg])   # we're done here
          finally:
              if egg and os.path.exists(egg):
                  os.unlink(egg)
      else:
          if setuptools.__version__ == '0.0.1':
              print >>sys.stderr, (
              "You have an obsolete version of setuptools installed.  Please\n"
              "remove it from your system entirely before rerunning this script."
              )
              sys.exit(2)
  
      req = "setuptools>="+version
      import pkg_resources
      try:
          pkg_resources.require(req)
      except pkg_resources.VersionConflict:
          try:
              from setuptools.command.easy_install import main
          except ImportError:
              from easy_install import main
          main(list(argv)+[download_setuptools(delay=0)])
          sys.exit(0) # try to force an exit
      else:
          if argv:
              from setuptools.command.easy_install import main
              main(argv)
          else:
              print "Setuptools version",version,"or greater has been installed."
              print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)'
  
  def update_md5(filenames):
      """Update our built-in md5 registry"""
  
      import re
  
      for name in filenames:
          base = os.path.basename(name)
          f = open(name,'rb')
          md5_data[base] = md5(f.read()).hexdigest()
          f.close()
  
      data = ["    %r: %r,\n" % it for it in md5_data.items()]
      data.sort()
      repl = "".join(data)
  
      import inspect
      srcfile = inspect.getsourcefile(sys.modules[__name__])
      f = open(srcfile, 'rb'); src = f.read(); f.close()
  
      match = re.search("\nmd5_data = {\n([^}]+)}", src)
      if not match:
          print >>sys.stderr, "Internal error!"
          sys.exit(2)
  
      src = src[:match.start(1)] + repl + src[match.end(1):]
      f = open(srcfile,'w')
      f.write(src)
      f.close()
  
  
  if __name__=='__main__':
      if len(sys.argv)>2 and sys.argv[1]=='--md5update':
          update_md5(sys.argv[2:])
      else:
          main(sys.argv[1:])
  
  
  
  
  
  
  