goldtech <goldt...@worldpost.com> writes: > Hi, > > Say I have a very big string with a pattern like: > > akakksssk3dhdhdhdbddb3dkdkdkddk3dmdmdmd3dkdkdkdk3asnsn..... > > I want to split the sting into separate parts on the "3" and process > each part separately. I might run into memory limitations if I use > "split" and get a big array(?) I wondered if there's a way I could > read (stream?) the string from start to finish and read what's > delimited by the "3" into a variable, process the smaller string > variable then append/build a new string with the processed data? > > Would I loop it and read it char by char till a "3"...? Or? > > Thanks.
s = "akakksssk3dhdhdhdbddb3dkdkdkddk3dmdmdmd3dkdkdkdk3asnsn" for k, subs in itertools.groupby(s, lambda x: x=="3"): print ''.join(subs) what you actually do in the body of the loop depends on what you want to do with the bits. -- http://mail.python.org/mailman/listinfo/python-list
