Another solution, much more verbose but certainly more readable:

#!/usr/bin/env python

str = "ABBBCCDDZ"

parts = []
last_char = ''
current_chunk = ''
for i in range(len(str)):
  current_char = str[i]
  if (current_chunk == '') or (last_char == current_char):
    current_chunk = current_chunk + current_char
  else:
    parts.append(current_chunk)
    current_chunk = current_char
  last_char = current_char
if len(current_chunk)>0:
  parts.append(current_chunk)
print parts

[download]

Also available here:

http://pastebin.com/f1213db97

- Antonio Ognio, Lima-Peru

In reply to Re^2: Yet Another Rosetta Code Problem (Perl, Ruby, Python, Haskell, ...) by Anonymous Monk
in thread Yet Another Rosetta Code Problem (Perl, Ruby, Python, Haskell, ...) by eyepopslikeamosquito

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