Splitting a string into substrings of equal size

[Gregor Lingl]

Emile van Sebille schrieb:
> On 8/14/2009 5:22 PM candide said...
...
>> What is the pythonic way to do this ?
> 
> I like list comps...
> 
>  >>> jj = '1234567890123456789'
>  >>> ",".join([jj[ii:ii+3] for ii in range(0,len(jj),3)])
> '123,456,789,012,345,678,9'
>  >>>
> 
> Emile
> 

Less beautiful but more correct:

 >>> ",".join([jj[max(ii-3,0):ii] for ii in
                              range(len(jj)%3,len(jj)+3,3)])
'1,234,567,890,123,456,789'

Gregor