[ x for x in xrange(10) when p(x) ]

[Peter Otten]

bonono at gmail.com wrote:

> However, I found something interesting which I don't quite understand :
> 
> list((x for x in [1,2,3] if x<2 or stop())) works
> 
> but
> 
> a = [ x for x in [1,2,3] if x <2 or stop() ] doesn't.

Here's how  Carl Banks explained it to me when Bengt came up with this
trick.

http://mail.python.org/pipermail/python-list/2005-April/274051.html

Peter