> but how do i overwrite a line value with another value ? > > i mean, how do go to, say, line 3 of a text file and replace > what is written on line 3 with something else?
You can't do it directly easily unless the new version happens to be the exact same length as the original. In practice you have to adopt the same approach as your word processor does: read the file into memory, change the line in memory then write the whoile file back out overwriting the original file (you may want to save the original version as a backup while your at it!) If the change is the exact same number of bytes you can do it by messing around with the seek() and write() functions but its messy and easy to get wrong! There are some examples of the first approach in my tutorial in the file handling topic... Alan G Author of the Learn to Program web tutor http://www.freenetpages.co.uk/hp/alan.gauld _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
