"lambda" appears to be misspelled here: ----------------------- IronPython 1.0.2216 (Beta) on .NET 2.0.50727.42 Copyright (c) Microsoft Corporation. All rights reserved. >>> lambda x : x <function lamda$0 at 0x000000000000002B> ----------------------- Cheers William -- We're hiring! <http://www.resolversystems.com/jobs/>