--- os.py	2009-09-28 11:04:52.000000000 -0400
+++ os.py.fix	2009-09-28 11:04:33.000000000 -0400
@@ -1031,11 +1031,11 @@
         Return the current process's user id."""
         return _posix.getuid()
 
-    def setpgrp():
+    def setpgrp(*args):
         """setpgrp()
 
         Make this process a session leader."""
-        return _posix.setpgrp()
+        return _posix.setpgrp(*args)
 
     def setsid():
         """setsid()