Redirecting stdin/stdout on Windows with '>'and '<'

[Dirck Blaskey]

Mark <markmcmahon at my-deja.com> wrote in message
news:8csvff$7pn$1 at nnrp1.deja.com...
> ...
> I would like to redirect output of my script with '>' or '<'
>
> If I try to redirect out then the file is created but has no contents.
>
> If I try to redirect in eg...
> "test.py < autoexec.bat"
>
> I get the following traceback
>
> Traceback (most recent call last):
>   File "C:\test.py", line 4, in ?
>     s = sys.stdin.read()
> IOError: [Errno 9] Bad file descriptor
>
> (Windows nt 4 sp 6, python 1.52)

Windows cmd.exe has a bug in file redirection when handling scripts.
The 'simple' fix is to use python on the command line:

python test.py < infile > outfile

(requires python in the path)

Attached is a Python script that uses an alternative syntax
to fix the problem:

test.py @infile !outfile

The script is also available from:
http://www.danbala.com/python/cmdfix
(currently down??)

Good luck

d
===========================
Dirck Blaskey
Danbala Software
dirck at danbala.com
http://www.danbala.com



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