Index: Lib/wsgiref/simple_server.py
===================================================================
--- Lib/wsgiref/simple_server.py	(revision 75082)
+++ Lib/wsgiref/simple_server.py	(working copy)
@@ -13,13 +13,14 @@
 from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
 import urllib, sys
 from wsgiref.handlers import SimpleHandler
+from platform import python_implementation
 
 __version__ = "0.1"
 __all__ = ['WSGIServer', 'WSGIRequestHandler', 'demo_app', 'make_server']
 
 
 server_version = "WSGIServer/" + __version__
-sys_version = "Python/" + sys.version.split()[0]
+sys_version = python_implementation() + "/" + sys.version.split()[0]
 software_version = server_version + ' ' + sys_version
 
 
Index: Lib/test/test_wsgiref.py
===================================================================
--- Lib/test/test_wsgiref.py	(revision 75082)
+++ Lib/test/test_wsgiref.py	(working copy)
@@ -9,6 +9,7 @@
 from wsgiref.simple_server import make_server
 from StringIO import StringIO
 from SocketServer import BaseServer
+from platform import python_implementation
 import re, sys
 
 from test import test_support
@@ -127,7 +128,8 @@
     def check_hello(self, out, has_length=True):
         self.assertEqual(out,
             "HTTP/1.0 200 OK\r\n"
-            "Server: WSGIServer/0.1 Python/"+sys.version.split()[0]+"\r\n"
+            "Server: WSGIServer/0.1 "+python_implementation()+"/" +
+            sys.version.split()[0]+"\r\n"
             "Content-Type: text/plain\r\n"
             "Date: Mon, 05 Jun 2006 18:49:54 GMT\r\n" +
             (has_length and  "Content-Length: 13\r\n" or "") +