[Python-ideas] "While" suggestion

[Roman Susi]

hi!

Jacob Rus wrote:
> Andrew Akira Toulouse wrote:

...

> Personally, I’d rather have this broken up than in one gigantic line
> that looks like:
> 
>     result = [int(line) for line in f if evenP(int(line))
>               until int(line) == 0 with open(filename) as f]


I have not followed the thread, but the line above looks cool and
terrible at the same time.

I can't think what other operator can be squeezed into expression, maybe
try-except, eh?

     result = [int(line) for line in f try if evenP(int(line))
               until int(line) == 0 except ValueError("blabla")
               with open(filename) as f]


I am not sure if this kind of SQLness should enter Python syntax at all...

Regards,
Roman

> 
> As for:
> 
>>     tokenchecks = [token for regex,token in match_tok until
>> regex.match(s)]     return tokenchecks[-1]
> 
> This is much more readably expressed as:
> 
> for regexp, token in match_tok:
>     if regexp.match(s):
>         return token
> 
> 
> Cheers,
> Jacob Rus
> 
> _______________________________________________
> Python-ideas mailing list
> Python-ideas at python.org
> http://mail.python.org/mailman/listinfo/python-ideas
> 
> !DSPAM:488e7c4d23202007710671!
>