Update ez_setup.py to latest version, so it works with Python 2.6.
diff --git a/python/ez_setup.py b/python/ez_setup.py
index 989d366..b7a9849 100755
--- a/python/ez_setup.py
+++ b/python/ez_setup.py
@@ -2,7 +2,7 @@
 
 # This file was obtained from:
 #   http://peak.telecommunity.com/dist/ez_setup.py
-# on 2008/7/1.
+# on 2009/4/17.
 
 """Bootstrap setuptools installation
 
@@ -19,7 +19,7 @@
 This file can also be run as a script to install or upgrade setuptools.
 """
 import sys
-DEFAULT_VERSION = "0.6c8"
+DEFAULT_VERSION = "0.6c9"
 DEFAULT_URL     = "http://pypi.python.org/packages/%s/s/setuptools/" % sys.version[:3]
 
 md5_data = {
@@ -53,13 +53,18 @@
     '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:
-        from md5 import md5
         digest = md5(data).hexdigest()
         if digest != md5_data[egg_name]:
             print >>sys.stderr, (
@@ -69,7 +74,6 @@
             sys.exit(2)
     return data
 
-
 def use_setuptools(
     version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
     download_delay=15
@@ -93,7 +97,7 @@
     try:
         import pkg_resources
     except ImportError:
-        return do_download()
+        return do_download()       
     try:
         pkg_resources.require("setuptools>="+version); return
     except pkg_resources.VersionConflict, e:
@@ -238,7 +242,6 @@
     """Update our built-in md5 registry"""
 
     import re
-    from md5 import md5
 
     for name in filenames:
         base = os.path.basename(name)
@@ -275,3 +278,4 @@
 
 
 
+