Index: Lib/xmlrpclib.py
===================================================================
--- Lib/xmlrpclib.py	(revision 57004)
+++ Lib/xmlrpclib.py	(working copy)
@@ -458,20 +458,6 @@
 # --------------------------------------------------------------------
 # XML parsers
 
-try:
-    # optional xmlrpclib accelerator
-    import _xmlrpclib
-    FastParser = _xmlrpclib.Parser
-    FastUnmarshaller = _xmlrpclib.Unmarshaller
-except (AttributeError, ImportError):
-    FastParser = FastUnmarshaller = None
-
-try:
-    import _xmlrpclib
-    FastMarshaller = _xmlrpclib.Marshaller
-except (AttributeError, ImportError):
-    FastMarshaller = None
-
 #
 # the SGMLOP parser is about 15x faster than Python's builtin
 # XML parser.  SGMLOP sources can be downloaded from:
@@ -1016,23 +1002,15 @@
     """
     if use_datetime and not datetime:
         raise ValueError, "the datetime module is not available"
-    if FastParser and FastUnmarshaller:
-        if use_datetime:
-            mkdatetime = _datetime_type
-        else:
-            mkdatetime = _datetime
-        target = FastUnmarshaller(True, False, _binary, mkdatetime, Fault)
-        parser = FastParser(target)
+
+    target = Unmarshaller(use_datetime=use_datetime)
+    if SgmlopParser:
+        parser = SgmlopParser(target)
+    elif ExpatParser:
+        parser = ExpatParser(target)
     else:
-        target = Unmarshaller(use_datetime=use_datetime)
-        if FastParser:
-            parser = FastParser(target)
-        elif SgmlopParser:
-            parser = SgmlopParser(target)
-        elif ExpatParser:
-            parser = ExpatParser(target)
-        else:
-            parser = SlowParser(target)
+        parser = SlowParser(target)
+
     return parser, target
 
 ##
@@ -1082,11 +1060,7 @@
     if not encoding:
         encoding = "utf-8"
 
-    if FastMarshaller:
-        m = FastMarshaller(encoding)
-    else:
-        m = Marshaller(encoding, allow_none)
-
+    m = Marshaller(encoding, allow_none)
     data = m.dumps(params)
 
     if encoding != "utf-8":