I feel stoopid ... this code is to verbose

[Joseph Wilhelm]

On Fri, 2002-06-14 at 09:19, Max M wrote:
<snip> 
> def stringSlicer(string, chunkSize=3):
>      chunkList = []
>      reverseString = list(string)
>      reverseString.reverse()
>      for i in range(0, len(string), chunkSize):
>          chunk = reverseString[i:i+chunkSize]
>          chunk.reverse()
>          chunk = ''.join(chunk)
>          chunkList.append(chunk)
>      chunkList.reverse()
>      return '.'.join(chunkList)
> 
> 
> print stringSlicer('42000000')
> 
>  >>> 40.000.000
> 
> I just find that it's a lot of code for such a little function an it 
> annoys my sense of aestetics. I have tried a lot of different approaches 
> including using zip on a list like ['','','.'], and other weird stuff :-)
> 
> I just cannot seem to find the nice 3-liner I expected from the 
> beginning. Has anybody got a better solution ? I thought somebody might 
> find it a fun exercise. Well I have...
<snip>

How about this:

import string

def stringSlicer( str, chunkSize=3 ):
	parts = list( str )
	for x in range( ( len( parts ) - chunkSize ), 0, -chunkSize ):
		parts.insert( x, "." )
	return string.join( parts, "" )

print stringSlicer( '42000000' )

>>> 42.000.000

--Joseph Wilhelm