>> Thankyou sir it is working.....but one more thing i want to ask that if my >> file will have entries like:--- >> >> fileA and fileB >> 12 10 >> 13 12 >> 14 >> 15 >> >> means if their no. of entries will not match then how to combine them(both >> input files have more than one column).
this is up to you and what type of solution you want to implement. rich (see below) has a great idea that you can use to address your situation. one thing that is *very* important is to not just copy a working solution that tutors have posted, but to truly study each snippet of code to fully understand exactly how every line works, because you will have to come up with solutions on your own at some point, so this should be a good lesson to learn. so far, several examples have been posted, but you should compare and contrast them, and decide for yourself which ones you like, which ones you don't, and why (or why not). you will become a much better Python programmer in a shorter period of time! the tutors are here to help get you jumpstarted with the language, and not necessarily to always provide you with an answer. > That depends entirely on what you want to happen when you encounter a > row that doesn't have an entry in one of the files. The previous > code, using izip(), will stop at the end of the shortest file. If you > want to pad the short file, (i.e. add values to make it the same > length as the longer file) you can use itertools.izip_longest(). Look > it up in the docs for usage. excellent idea... i would highly encourage everyone to study this module. it has breaktaking Python code, much in line with snippets you'd find in the Cookbook, and yes, i expose students to this in my intro Python course! http://docs.python.org/library/itertools.html cheers, -- wesley - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "Python Web Development with Django", Addison Wesley, (c) 2009 http://withdjango.com wesley.j.chun :: wescpy-at-gmail.com python training and technical consulting cyberweb.consulting : silicon valley, ca http://cyberwebconsulting.com _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor