how to run a .bat file in python?

Question

call python 'D:\chan.bat'

"set of python statements is stored in notepad and saved as .bat extension. how to run these statements in python.what can be the syntax?"

This topic has been already discussed here.[http://stackoverflow.com/questions/1818774/python-subprocess] — Java, Mar 19 '12 at 07:51
Are you saying that you have a Python script (composed of Python statements) or a shell script (composed of command-line operations)? — Li-aung Yip, Mar 19 '12 at 08:09
Please clarify your post. What language is your .bat file written in? — machine yearning, Mar 19 '12 at 08:14

machine yearning · Answer 1 · 2012-03-19T08:12:24.767

7

I think this is usually done using the subprocess module:

from subprocess import call
call("D:\chan.bat")

However a normal call doesn't give you back much information. You might need the power of a Popen object:

from subprocess import Popen
Popen("D:\chan.bat")

Edit: You might need to take out the single quotes for this to work.

"'D:\chan.bat'" -> "D:\chan.bat"

edited Mar 19 '12 at 08:12

answered Mar 19 '12 at 07:55

machine yearning

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Use `'\\'` for escaping the slash. – cwahls Feb 03 '16 at 03:37
or use a raw string by prefixing the string with the `r` character like `r'my string here'` – machine yearning Feb 10 '16 at 14:25

score 3 · Answer 2 · answered Mar 19 '12 at 07:53

3

If you don't need to interact with the script, wouldn't this work?

import os
os.system("d:\\chan.bat")

answered Mar 19 '12 at 07:53

claesv

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Calling the program through the shell is usually not required; see http://docs.python.org/library/subprocess.html#replacing-os-system – machine yearning Mar 19 '12 at 08:06

score 2 · Answer 3 · answered Mar 19 '12 at 07:53

I have no Windows box to test it.

Here is what I try on Mac OS

Dinh-Phams-MacBook-Pro:tmp dinhpham$ cat > t.bat
print "abc" 
Dinh-Phams-MacBook-Pro:tmp dinhpham$  
Dinh-Phams-MacBook-Pro:tmp dinhpham$ python t.bat
abc

Python interpreter does not care about .py extension

If you want to load .bat file as Python module, just use

imp.load_source(path_to_file)

score 0 · Answer 4 · answered Mar 19 '12 at 08:26

Command can be passed to python as follows:

[avasal@avasal]$ python -c "print 'a' + 'b'"
ab
[avasal@avasal]$

In python --help you can see, -c cmd : program passed in as string (terminates option list), In your batch file, you can make use of this option.

how to run a .bat file in python?

4 Answers4