Peter Otten a écrit : > Bruno Desthuilliers wrote: > >> # You don't need to read the whole file in memory > >> lines1, lines2 = tee(infile) >> print min(extract_numbers(lines1)), max(extract_numbers(lines2)) > > tee() internally maintains a list of items that were seen by > one but not all of the iterators returned. Therefore after calling min() > and before calling max() you have a list of one float per line in memory > which is quite close conceptually to reading the whole file in memory. > > If you want to use memory efficiently, stick with the for-loop.
Indeed - I should have specified that the second version was not necesseraly better wrt/ either perfs and/or resources usage. Thanks for having made this point clear. -- http://mail.python.org/mailman/listinfo/python-list
