http://www.perlmonks.org?node_id=638732


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

Gnah. No No and No.

The itertools version is quite lovely, but if you must do an iterative version please at least make it idiomatic. If you really needed an index, you could at least use enumerate() ;-P

mystr = "ABBBCCDDZ" def get_iterparts(mystr): buf = "" for char in mystr: if not buf or buf.endswith(char): buf += char else: yield buf buf = char if buf: yield buf print list(get_iterparts(mystr)) def get_parts(mystr): parts = [] buf = "" for char in mystr: if not buf or buf.endswith(char): buf += char else: parts.append(buf) buf = char if buf: parts.append(buf) return parts print get_parts(mystr)