On Thu, Oct 11, 2012 at 7:13 AM, Sunil Tech <sunil.tech...@gmail.com> wrote: > > text1 contains > This is from Text1 --- 1st line > .... > > text2 contains > This is from Text2 --- 1st line > .... > > i want result in text3 like > This is from Text1 --- 1st line > This is from Text2 --- 1st line > .... > but condition is "should not use any loops"
Use itertools.zip_longest() and itertools.chain.from_iterable(), along with the text3.writelines(). zip_longest allows the files to be of different lengths. zip would terminate at the shortest number of lines, but fillvalue of zip_longest supplies a default value (set to an empty string). chain.from_iterable joins the tuples from zip_longest as one iterable to use as an argument to writelines(). This way there are no pure Python loops, or even generator expressions/comprehensions. _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
