> How can we know that one specific file is already exist in filesystem? > for instance, I want to read zipfile by issuing code:
Take a look in the os.path module. There is explanation of how to check for various aspects of files (including existence) in my web tutor Operating System topic. > if the inputfilename doesn't exist then an error would be occurred. > I want to catch up this special case first. The other approach, implied in your question is simply to *try* to *open* for read: try: open(inputfilename) except IOError: # it presumably didn't exist, so deal with it HTH, 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
