list comprehension question

[Emile van Sebille]

On 5/5/2009 9:15 AM J Kenneth King said...

> List comprehensions can make a reader of your code apprehensive
> because it can read like a run-on sentence and thus be difficult to
> parse. The Python documentation discourages their use and I believe
> for good reason.

Can you provide a link for this?  I'd like to see specifically what's 
being discouraged, as I'd be surprised to find routine usage frowned upon.

Emile