[Tutor] Output of list

[Ricardo Aráoz]

Martin Walsh wrote:
> Ricardo Aráoz wrote:
>> Emil wrote:
>>> hey
>>>
>>> I want to be capable of converting a string into a list where all the items, in  the list, have a fixed length not equal to 1 e.g i have k = 'abcdefgh' and I want the fixed length for all the the items to be 2 then the list would look like ['ab', 'cd', 'ef, 'gh']. How do i do this?
>>>
>>>
>> Also : [''.join(i) for i in zip(k[::2], k[1::2])]
> 
> Cool use of 'zip' and extended slicing!
> 

Thx

> Just thought I would add that 'zip' truncates after the shortest
> sequence, which would cause data loss for strings of odd length -- of
> course, the OP may not consider this a problem.
> 
> In [1]: k = 'abcdefghi' # <- note the 'i'
> 
> In [2]: len(k)
> Out[2]: 9
> 
> In [3]: [''.join(i) for i in zip(k[::2], k[1::2])]
> Out[3]: ['ab', 'cd', 'ef', 'gh'] # <- 'i' is gone
> 

Could only think of :
[''.join(i) for i in zip(k[::2], k[1::2])] + list(k)[-(len(k)%2):0:-len(k)]

But maybe it is too complicated. There should be a simpler way.