[Tutor] Replacing keyboard input to EXE file

[eShopping]

> >> eShopping wrote:
> >>> import subprocess
> >>> x = subprocess.Popen(args="poly.exe",stdin=subprocess.PIPE)
> >>> for item in ["polyin.dat", "polyout.dat", "polyout.plt"]:
> >>>     x.stdin.write('%s\n' % item)
> >>> but got the same error message
> >>
> >> Above code would seem to be correct.
> >>
> >> Are you sure the Fortran program accepts the names?
> >> One easy way to test this is to try
> >>
> >> C:\> poly.exe < poly_files.txt
> >>
> >> in a CMD program (or COMMAND or whatever the console program is called
> >> nowadays at Win* systems).
> >
> > Tried piping the input as suggested but POLY ignores the pipe and just
> > asks me for the names of the files as if we were in interactive mode.
>
>Can you provide an example of the Fortran program session? Especially
>the part where it asked for file name.

An example of the session is

=======start of snip
C:\TEMP>poly
PLEASE ENTER THE INPUT FILE NAME:
polyin.dat
PLEASE ENTER THE OUTPUT FILE NAME:
polyout.dat
PLEASE ENTER PLOT OUTPUT FILE NAME:
polyout.plt

Execution terminated: Normal stop
C:\TEMP>
=======end of snip