diff -NurpP python2.6_orig/threading.py python2.6/threading.py
--- python2.6_orig/threading.py	2010-09-15 21:08:23.000000000 +0400
+++ python2.6/threading.py	2011-05-03 12:00:55.594854003 +0400
@@ -9,6 +9,7 @@ except ImportError:
     raise
 
 import warnings
+import itertools
 
 from functools import wraps
 from time import time as _time, sleep as _sleep
@@ -397,11 +398,10 @@ class _Event(_Verbose):
             self.__cond.release()
 
 # Helper to generate new thread names
-_counter = 0
+_counter = itertools.count()
 def _newname(template="Thread-%d"):
     global _counter
-    _counter = _counter + 1
-    return template % _counter
+    return template % _counter.next()
 
 # Active thread administration
 _active_limbo_lock = _allocate_lock()