Reading from stdin (in windows)

[durumdara]

Hi!

I wanna write a file processor in python (Windows XP).
I wanna use pipe, and not parameters.

When I write this:

....
l = []
while 1:
t = sys.stdin.read(1)
if t == '':
break
l.append(t)

t = "".join(l)
....

and use code this:
process.py <test.txt

I got:
"Bad file descriptor"

What I do wrong? I need to call this module in another format?
Or I read in wrong way?

Thanks for your help:
dd

[Rob Williscroft]

du*******@gmail.com wrote in news:mailman.2448.1223974725.3487.python-
li**@python.org in comp.lang.python:

Hi!

I wanna write a file processor in python (Windows XP).
I wanna use pipe, and not parameters.

When I write this:

...
l = []
while 1:
t = sys.stdin.read(1)
if t == '':
break
l.append(t)

t = "".join(l)
...

and use code this:
process.py <test.txt

I got:
"Bad file descriptor"

What I do wrong? I need to call this module in another format?
Or I read in wrong way?

The problem appear to be that MS-Windows doesn't make pipe's for
programs it opens via its file type association mechanism.

Essentially MS-Windows is treating the .py file as a document and
using python to "open" the document.

Try running you program as:

python process.py <test.txt

Note for this to work python will have to be on your path. If
it isn't use the full path to you copy of python. for e.g.:

c:\python25\python.exe process.py <test.txt

Rob.
--
http://www.victim-prime.dsl.pipex.com/