On Thu, Dec 29, 2011 at 10:09 PM, Dave Angel <d...@davea.name> wrote:
> On 12/29/2011 11:25 AM, Sayantan Datta wrote: > >> On Thu, Dec 29, 2011 at 5:34 PM, Chris Angelico<ros...@gmail.com> wrote: >> >> On Thu, Dec 29, 2011 at 10:48 PM, Sayantan Datta<kenzo.zom...@gmail.com> >>> wrote: >>> >>>> for line in sys.stdin : >>>> for char in line : >>>> sys.stdout.write(rotate13_**letter(char)) >>>> >>>> cat sample.html | python rot13.py rot13.html >>>> >>> You're reading from stdin, which is correct, but you're writing to >>> stdout and not redirecting it. You need to put an arrow before >>> rot13.html to indicate redirection: >>> >>> cat sample.html | python rot13.py>rot13.html >>> >>> Note though that 'cat' is superfluous here; all you need to do is >>> redirect input: >>> python rot13.py<sample.html>rot13.**html >>> >>> Hope that helps! >>> >>> Chris Angelico >>> -- >>> http://mail.python.org/**mailman/listinfo/python-list<http://mail.python.org/mailman/listinfo/python-list> >>> >>> did that, but the output file is still empty? Does the fault lie >> somewhere >> else? >> >> Both Peter and Chris pointed out that you have the if __name__ == > "__main__" line indented. If that's true in your actual file, then the > program does nothing useful. > > Why not run it without output redirection, and see what it displays? And > stick an unindented print line in there, just to see it do something. > > > > -- > > DaveA > > hmm, yes, it was, noticed it right now. Huh, i made such a silly mistake.. Anyway, thanks a lot. :)
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