[Tutor] Output of list

[Martin Walsh]

János Juhász wrote:
 > It is nice place to use a generator:
> 
> def pairs(sliceit):
>     streamlist = list(sliceit)
>     streamlist.reverse()
>     while streamlist:
>         pair = streamlist.pop() 
>         try:    pair += streamlist.pop()
>         except: pass
>         yield pair
> 
> ## Probably it is easier to understand
> def pairs2(sliceit):
>     try:
>         while sliceit:
>             yield sliceit[:2]
>             sliceit = sliceit[2:]
>     except: # oops, it was odd length
>         yield sliceit
> 

... Or, by extending Alan's solution ...

def splitStringByN(s, n):
    for m in range(0, len(s), n):
        yield s[m:m+n]

k = 'abcdefghi'
list(splitStringByN(k, 2))

As it turns out, this is similar to an ASPN Cookbook recipe contributed
by Dmitry Vasiliev:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302069

HTH,
Marty