Fixed #2888 -- Updated ez_setup.py. Setuptools and ez_setup.py suck.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@3903 bcc190cf-cafb-0310-a4f2-bffc1f526a37

ez_setup.py

@@ -14,7 +14,7 @@ the appropriate options to ``use_setuptools()``.
 This file can also be run as a script to install or upgrade setuptools.
 """
 import sys
-DEFAULT_VERSION = "0.6c1"
+DEFAULT_VERSION = "0.6c3"
 DEFAULT_URL     = "http://cheeseshop.python.org/packages/%s/s/setuptools/" % sys.version[:3]
 
 md5_data = {
@@ -28,6 +28,11 @@ md5_data = {
     'setuptools-0.6b4-py2.4.egg': '4cb2a185d228dacffb2d17f103b3b1c4',
     'setuptools-0.6c1-py2.3.egg': 'b3f2b5539d65cb7f74ad79127f1a908c',
     'setuptools-0.6c1-py2.4.egg': 'b45adeda0667d2d2ffe14009364f2a4b',
+    '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',
 }
 
 import sys, os
@@ -77,13 +82,13 @@ def use_setuptools(
     try:
         pkg_resources.require("setuptools>="+version)
 
-    except pkg_resources.VersionConflict:
+    except pkg_resources.VersionConflict, e:
         # XXX could we install in a subprocess here?
         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."
-        ) % version
+            " a more recent version first.\n\n(Currently using %r)"
+        ) % (version, e.args[0])
         sys.exit(2)
 
 def download_setuptools(
@@ -139,15 +144,15 @@ def main(argv, version=DEFAULT_VERSION):
     try:
         import setuptools
     except ImportError:
-        import tempfile, shutil
-        tmpdir = tempfile.mkdtemp(prefix="easy_install-")
+        egg = None
         try:
-            egg = download_setuptools(version, to_dir=tmpdir, delay=0)
+            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:
-            shutil.rmtree(tmpdir)
+            if egg and os.path.exists(egg):
+                os.unlink(egg)
     else:
         if setuptools.__version__ == '0.0.1':
             # tell the user to uninstall obsolete version