Splitting a string every 'n'

[Rich Harkins]

> On Tuesday 09 July 2002 08:50 am, Simon.Foster at smiths-aerospace.com wrote:
> > What is the idiomatic way to split a string into a list
> > containing 'n' character substrings?  I normally do
> > something like:
> >
> > while strng:
> >     substring = strng[:n]
> >     strng = strng[n:]
> >     <process substring>
> >
> > But the performance of this is hopeless for very long strings!
> > Presumable because there's too much list reallocation?  Can't Python
> > just optimise this by shuffling the start of the list forward?
> >
> > Any better ideas, short of manually indexing through?  Is there
> > something like:
> >
> > for substring in strng.nsplit():
> >     <process substring>
>
Using python2:

[s[i:i+n] for i in range(0,len(s),n)]

 where:
 s - is the string to split
 n - is the number of characters to break at
 i - is some throwaway variable (previous value of i *not* protected)

Rich