From: angus@...
Date: 2002-08-08T18:50:06+09:00
Subject: Re: Fun with shifting bytes / Python translation

[...]
> I don't understand how lamba or reduce work, for instance.
[...]
> 	    L=map(lambda x: ord(x), L[0:4])
> 	    L.reverse()
> 	    n=reduce(lambda x,y: x*256+y, L, 0L)

I don't know about the math, but with regard to the lambdas, I suppose the
first creates an array containing the byte values of the string:

    l = l.split(//).map{ |c| c[0] }
    l.reverse!

and the second could be something like this:

    n = 0
    l.each {|i| n = n*256+i }

But I really don't know Python.

Good luck.