how to control an application using python script

[learnerofpython]

I have a cygwin application which i have invoked using python script like:
os.system("path of the exe file")
How can i enter text in the cygwin( which has appeared )using the python script itself???

[fuffens]

Are you running Python directly from Windows or from CygWin? In case you run Python from Windows you probably need to use COM to send text to the CygWin window. The win32com module can be used (included in the PythonWin distribution). Look at other posts here for more information.

I would suggest that you build Python on CygWin instead (or download Python built for CygWin) and then you can make any os.system call you want to instead of sending text to the CygWin window.

Best regards
/Fredrik

[kudos]

Can you do something like this?

 
import os
 
fd = os.popen("your program that requires user input","w")
fd.write("some input\n")
fd.close()
 
 

(or have I completely misunderstood the question?)

-kudos

I have a cygwin application which i have invoked using python script like:
os.system("path of the exe file")
How can i enter text in the cygwin( which has appeared )using the python script itself???

[learnerofpython]

thanks for all ur valuable suggestions.
Whenever i use popen to invoke cygwin application or any other application(e.g a simple notepad) the application is not appearing on the screen


eg.
import os

fd = os.popen("C:\cy gwin\cygwin.bat ","w")
fd.write("telne t 101.29.34.132")
fd.close()

i am unable to view any changes this program makes

[bartonc]

thanks for all ur valuable suggestions.
Whenever i use popen to invoke cygwin application or any other application(e.g a simple notepad) the application is not appearing on the screen


eg.
import os

fd = os.popen("C:\cy gwin\cygwin.bat ","w")
fd.write("telne t 101.29.34.132")
fd.close()

i am unable to view any changes this program makes

Nope, that won't work. The object of popen() must have an input (like sys.stdin) and an output (like sys.stdout), so using a batch file to invoke the process won't work. Check out 2.4 docs section 6.9 for examples.

[kudos]

try this...

import os
input,output= os.popen2("some command","t")
input.write("some input")
print output.readline()
 
 

input is like file write(w) part, while output is the file read part(r)

-kudos

[learnerofpython]

no kudos, it didnt work.
barton i cudnt find section 6.9 in doc 2.4
please any1 help me out

[fuffens]

Here is a really lame solution to your problem. I do not have CygWin installed on my computer so I open notepad and send text to it instead. I think you can make it work for CygWin.

from win32com.client import *
sh = Dispatch("Wscript.Shell")
sh.Run("notepad")
sh.AppActivate("Untitled");sh.Sendkeys("Hello!");sh.SendKeys("{Enter}")

Kodus, thank you for pointing to the popen function in the os module. I think that is the correct way to go for a stable, general solution. I could not however get it to work. I will do some reading on popen later.

BR
/Fredrik

[fuffens]

...and here is one for the command window also...

from win32com.client import *
import time
sh = Dispatch("Wscript.Shell")
sh.Run("cmd"); time.sleep(1);sh.Sendkeys("dir");sh.SendKeys("{Enter}")

[kudos]

hmmm...It might be true that telnet won't work with popen. When I think about it, I vaugly remember trying log into telnet via popen (in C, but I guess that is basically the same function/method). It think it had something to do with security (i.e. not allowing people to make scripts with password databases). Anyway, im sitting on a windows machine, and I have no longer an account where I can login from telnet, so I won't be able to test it...

-kudos