Re: [Python-ideas] New 3.x restriction in list comprehensions

On Sat, Sep 18, 2010 at 8:00 AM, Dirkjan Ochtman wrote:

On Fri, Sep 17, 2010 at 21:44, Raymond Hettinger wrote:

...

My question for the group is whether it would be a good idea to drop the new restriction.

I like the restriction and would actually advocate having it for regular for-loops too (though that would be a big no-no, I guess).

Yep, I tend to parenthesise tuples even when it isn't strictly necessary as well. Even if the parser doesn't care, it makes it a lot easier for human readers (including myself when I have to go back and read that code). (I have similar objections to people that rely on precedence ordering too heavily in complicated expressions - even if the compiler understands them correctly, many readers won't know the precedence table off by heart. Judicious use of parentheses turns code those readers would otherwise have to think about into something which is obviously correct even at a glance). Cheers, Nick. -- Nick Coghlan   |   ncoghlan@gmail.com   |   Brisbane, Australia