python executing windows exe

[Kiran]

Hi everybody,
I am making python run an executable using the os module. Here is
my question. The executable, once it is running, asks the user to
input a filename that it will process. Now, my question is how do i
automate this. let me make this clear, it is not an argument you pass
in when you type in the exe. An example below illustrates:

THIS IS NOT WHAT YOU DO:
nec2d.exe couple1.nec # couple1.nec is the
file you want to prcess

rather, what you do is in windows cmd:

nec2d.exe
**** PROGRAM PRINTS OUT STUFF*****
**** PROGRAM PRINTS OUT STUFF*****
**** PROGRAM PRINTS OUT STUFF*****
**** PROGRAM PRINTS OUT STUFF*****
Please enter input file: <--------- THIS IS WHERE THE USER IS ASKED
TO TYPE IN THE FILENAME

everybody thanks for your help
-- Kiran

 

[Larry Bates]

Hi everybody,
I am making python run an executable using the os module. Here is
my question. The executable, once it is running, asks the user to
input a filename that it will process. Now, my question is how do i
automate this. let me make this clear, it is not an argument you pass
in when you type in the exe. An example below illustrates:

THIS IS NOT WHAT YOU DO:
nec2d.exe couple1.nec # couple1.nec is the
file you want to prcess

rather, what you do is in windows cmd:

nec2d.exe
**** PROGRAM PRINTS OUT STUFF*****
**** PROGRAM PRINTS OUT STUFF*****
**** PROGRAM PRINTS OUT STUFF*****
**** PROGRAM PRINTS OUT STUFF*****
Please enter input file: <--------- THIS IS WHERE THE USER IS ASKED
TO TYPE IN THE FILENAME

everybody thanks for your help
-- Kiran

Not exactly a Python question, but here goes. Normally I do this
by piping the response into the executable. Something like:

nec2d.exe <filename.txt

That way the program reads the filename that is provided by filename.txt.
You would of course write the name of the file you want processed into
filename.txt prior to doing this. Try it by hand first to make sure the
program doesn't do something smart like not read from stdin.

-Larry

 

[Gabriel Genellina]

I am making python run an executable using the os module. Here is
my question. The executable, once it is running, asks the user to
input a filename that it will process. Now, my question is how do i
automate this. let me make this clear, it is not an argument you pass
in when you type in the exe. An example below illustrates:

You can use the subprocess module, or any of the Popen2 variants. Usually
they work fine - but depending on how the application behaves, it may not
work.

 

[aspineux]

First look if your .exe will accept to work that way !
try in a DOS prompt

echo yourfilename | nec2d.exe

or if the program expect more input, write them all in a file
( myinputs.txt ) and try :

nec2d.exe < myinputs.txt

If it works looks for module subprocess and more precisely object
subprocess.popen and method comunicate

 

[Kiran]

First look if your .exe will accept to work that way !
try in a DOS prompt


or if the program expect more input, write them all in a file
( myinputs.txt ) and try :


If it works looks for module subprocess and more precisely object
subprocess.popen and method comunicate

Hi everybody,
What you guys said helped out a lot and I got it to do what I
wanted.

thanks!,
Kiran