Jordan Rastrick wrote:
itertools.groupby enables you to do this, you just need to define a suitable grouping function, that stores its state:
For example, if short lines should be appended to the previous line:
from itertools import groupby linesource = """\ Here is a long line, long line, long line and this is short and this is short Here is a long line, long line, long line and this is short""".splitlines()
def record(item, seq = [0]):
if len(item) > 20:
seq[0] +=1
return seq[0]
>>> for groupnum, lines in groupby(linesource, record): ... print "".join(lines) ... Here is a long line, long line, long lineand this is shortand this is short Here is a long line, long line, long lineand this is short >>>
Michael
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