Thank you Matt for the reference. The Twisted framework is the first time I've encountered the Python lambda function. I was most definitely aware of lambda being used as a Greek letter in various disciplines (in fluid mechanics lambda represents wavelength) ... and was not aware of its implications in Python let alone LISP. Serg

From: Matt Goodall <matt@pollenation.net> Reply-To: Twisted discussion stuff <twisted-python@twistedmatrix.com> To: Twisted discussion stuff <twisted-python@twistedmatrix.com> Subject: Re: [Twisted-Python] Semantics sought: lambda? Date: Thu, 15 Jul 2004 12:41:15 +0100

...

In the Twisted documentation, there are several examples and references

On Thu, 2004-07-15 at 12:03, Sergio Trejo wrote: that

...

use the term "lambda" but I can't find any semantic definition of what lambda is about. For example:

d.addCallback(lambda object: object.callRemote("echo", "hello network"))

I'm kind of new to Python and prior to Twisted, I have not seen this type of syntax before:

"lambda object: "

Any references would be appreciated.

lambdas are Python's way of creating short, anonymous functions. They are document at python.org:

- http://www.python.org/doc/current/ref/lambdas.html - http://docs.python.org/tut/node6.html#SECTION006750000000000000000

Cheers, Matt

-- __ / \__ Matt Goodall, Pollenation Internet Ltd \__/ \ w: http://www.pollenation.net __/ \__/ e: matt@pollenation.net / \__/ \ t: +44 (0)113 2252500 \__/ \__/ / \ Any views expressed are my own and do not necessarily \__/ reflect the views of my employer.

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