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
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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
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