That would be: 
#!/usr/bin/env python

str = "ABBBCCDDZ"

parts = []
for i in range(len(str)):
  if len(parts)>0:
    if parts[len(parts)-1][len(parts[len(parts)-1])-1]==str[i]:
      parts[len(parts)-1] += str[i]
    else:
      parts.append(str[i])
  else:
    parts.append(str[i])

print parts

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- Antonio Ognio, Lima-Peru

In reply to Re: 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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