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I am using os.system to execute a java program through a python script. I need to pass a file name to the java program as an argument. I am not able to figure out how to pass the relative file location. What should be my reference for determining the relative location. I tried to use the location of the python script as the reference but doesn't work.

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See the subprocess module for all your external process invoking needs.

p = subprocess.Popen(['myjavaapp', 'afilename.txt'])

If you need to get the relative location and you aren't sure how the other command is going to take it, make it absolute.

p = subprocess.Popen(['myjavaapp', os.path.abspath('afilename.txt')])
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