Fixed import of configparser in the distutils module.

If configparser is unavailable, try to import configparser using its
old name. This is required for backward-compatibility with older
Python versions.
diff --git a/Lib/distutils/command/upload.py b/Lib/distutils/command/upload.py
index daf6811..92c4bf2 100644
--- a/Lib/distutils/command/upload.py
+++ b/Lib/distutils/command/upload.py
@@ -10,11 +10,16 @@
 import os
 import socket
 import platform
-import ConfigParser
 import httplib
 import base64
 import urlparse
 import cStringIO as StringIO
+try:
+    from configparser import ConfigParser
+except ImportError:
+    # For backward-compatibility with Python versions < 2.6.
+    from ConfigParser import ConfigParser
+
 
 class upload(PyPIRCCommand):
 
diff --git a/Lib/distutils/config.py b/Lib/distutils/config.py
index f1117be..35a21ec 100644
--- a/Lib/distutils/config.py
+++ b/Lib/distutils/config.py
@@ -5,7 +5,11 @@
 """
 import os
 import sys
-from ConfigParser import ConfigParser
+try:
+    from configparser import ConfigParser
+except ImportError:
+    # For backward-compatibility with Python versions < 2.6.
+    from ConfigParser import ConfigParser
 
 from distutils.cmd import Command
 
diff --git a/Lib/distutils/dist.py b/Lib/distutils/dist.py
index 0b13c1e..6299919 100644
--- a/Lib/distutils/dist.py
+++ b/Lib/distutils/dist.py
@@ -358,8 +358,11 @@
 
 
     def parse_config_files (self, filenames=None):
-
-        from ConfigParser import ConfigParser
+        try:
+            from configparser import ConfigParser
+        except ImportError:
+            # For backward-compatibility with Python versions < 2.6.
+            from ConfigParser import ConfigParser
 
         if filenames is None:
             filenames = self.find_config_files()