Initilizing MD lists w/ objects.

[Philip Swartzleonard]

Gerhard =?iso-8859-15?Q?H=E4ring?= || Fri 12 Apr 2002 08:27:07p:

> Philip Swartzleonard wrote in comp.lang.python:
>> I'm looking for a reasonable way to initilize a multidimensional list
>> with a bunch of blank objects of some type (already been burned by
>> using [obj ()] * 400 or similar =). This is the best i've come up
>> with, but it seems icky:
>> 
>>         self.data = [None]*40
>> 
>>         for x in range(40):
>>             self.data[x] = []
>>             for y in range(40):
>>                 self.data[x].append(Vis_cell())
> 
> What about list comprehensions, like:
> 
> self.data = [[Vis_cell() for column in range(40)] for row in
> range(40)] 

Oh. That's perfect. Thanks =).
(Just having also just found out that
for x in data: for cell in x: cell.wahatever
works as well as a double for in range =)

-- 
Philip Sw "Starweaver" [rasx] :: www.rubydragon.com