stringshuffle()

gistfile1.txt

from random import shuffle
from re import match

def stringshuffle(s):
	'''
	Shuffles a string but keeps the first and last letter of every word at their original position.
	'''
	splitted = s.split()
	shuffled = []
	for str in splitted:
		distance = -2 if match("[\.\!\?\,\;\:\(\)]", str[-1]) else -1
		middle_list = list(str[1:distance])
		shuffle(middle_list)
		shuffled.append(str[0] + ''.join(middle_list) + str[distance:])
	return ' '.join(shuffled)

print stringshuffle('Hier hat der Zufall seine Hand im Spiel')