Executing DOS batch files in Python

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Executing DOS batch files in Python

 
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  #1
Apr 17th, 2008
Hi all..

I am new to Python and badly need help...I am trying to run a DOS batch file from Python..I have given the inputs also..It runs half and then exits at the point of time when I need to give answer to whether I need to replace two files or not...when that interrupt comes up the batch file just closes and no error is logged...how do I get to give that user input in the middle...is it possible???Is there any way that the python would prompt us to enter the values???
Thanks in advance
Prachu
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Re: Executing DOS batch files in Python

 
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  #2
Apr 17th, 2008
Have you looked at popen2? It's documented in the Python run-time library manual and I'm sure google will show lots of examples.
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Re: Executing DOS batch files in Python

 
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  #3
Apr 17th, 2008
i am sorry but I am not able to execute that command as a sub-process as it says in the library reference...i have been using the following code :
os.system('C:\\Python25\\Test\\LH-Sitekit\\sitekit\\engine\\install-nt.bat %s,%s,%s'%(input1,input2,input3))
where the 3 inputs are defined previously...

Please could u let me know how to use popen2() with this cmd...
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Re: Executing DOS batch files in Python

 
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  #4
Apr 17th, 2008
Try something like this ...
python Syntax (Toggle Plain Text) 
  1. program = "C:\\Python25\\Test\\LH-Sitekit\\sitekit\\engine\\install-nt.bat"
  2. # supply the proper input values as strings
  3. input1 = 'x'
  4. input2 = 'x'
  5. input3 = 'z'
  6.  
  7. import subprocess
  8. subprocess.call([program, input1, input2, input3])
Sorry, line one comes out a little goofy. Toggle to plain text to see the correct line.
Last edited by vegaseat; Apr 17th, 2008 at 2:04 pm.
May 'the Google' be with you!
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Re: Executing DOS batch files in Python

 
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  #5
Apr 18th, 2008
Hi..

i tried this...its behaving in the same way as the os.system did..
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Re: Executing DOS batch files in Python

 
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May 2nd, 2008
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Originally Posted by Prachu View Post
Hi..

i tried this...its behaving in the same way as the os.system did..

Hi .. ! U can do it like this
Python Syntax (Toggle Plain Text) 
  1. import os
  2.  
  3. os.system('install-nt.bat %s %s %s < %s'%(input1,input2,input3,'C:\command.txt'))

Hope this works []

- Mohan
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Re: Executing DOS batch files in Python

 
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  #7
May 2nd, 2008
Thanks a lot! It works!
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