[Tutor] max(len(item)) for cols

[Max Noel]

On Jun 17, 2005, at 11:58, János Juhász wrote:

>
> Dear Guys,
>
> I have a 2D array:
>
>>>> [['1', '2 ', '3    '], ['longer     ', 'longer    ', 'sort']]
>>>>
>
>
> How can I  get what is the max(len(item)) for the columns ?
> I would like to get a list with the max_col_width values.
>
> I hope that, it can wrote with some nice list comprehension, but I  
> can't do
> that :(


 >>> a = [[1, 2], [1, 2, 3], [1, 2, 3, 4], [1]]
 >>> max(len(item) for item in a)
4

     If you're running Python 2.3 or lower, add brackets in the last  
line:
 >>> max([len(item) for item in a])
4


-- Max
maxnoel_fr at yahoo dot fr -- ICQ #85274019
"Look at you hacker... A pathetic creature of meat and bone, panting  
and sweating as you run through my corridors... How can you challenge  
a perfect, immortal machine?"