[Tutor] List of ints

[Alan Gauld]

On 03/03/15 06:50, Phil wrote:

> I'd like to set up a two dimensional list of counters as follows;
>
> count = [ [0], [0], [0] ]
>
> And then increment the first counter as follows;
>
> count [0] += 1

Are you trying to increment the zero to make it 1?
Or are you trying to add a new value, 1, to the first sublist?
ie Do you want the output to be:

count = [ [1], [0], [0] ]

OR

count = [ [0,1], [0], [0] ]

To do the first you need to increment the *value* of
the first sublist not the sublist:

count[0][0] += 1

To do the second you must use append():

count[0].append(1)

> The array module looks like the answer because it seems to function in
> the same way as an array under C.

The array module is pretty specialized, in most cases a simple
list is a better solution.

> Is there a way to add a value to a list of ints?

Yes, see above.

-- 
Alan G
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