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copied!<p>Expanding on FatalError's suggestion with an example. </p> <p>One additional benefit of using <code>subprocessing</code> rather than <code>os.system</code> is that it uses the same syntax cross-platform (<code>os.system</code> on Windows requires a "start" at the beginning, whereas OS X requires and "open". Not a huge deal, but one less thing to remember). </p> <h2>Opening a file with <code>subprocess.call</code>.</h2> <p>All you need to do to launch a program is call <code>subprocess.call()</code> and lass in a <code>list</code> of arguments where the first is the path to the program, and the rest are additional arguments that you want to supply to the program you're launching. </p> <p>For instance, to launch Notepad.exe</p> <pre><code>import subprocess import os path_to_notepad = 'C:\\Windows\\System32\\notepad.exe' path_to_file = 'C:\\Users\\Desktop\\hello.txt' subprocess.call([path_to_notepad, path_to_file]) </code></pre> <p>Passing multiple arguments and paths is equally as simple. Just add additional items to the list. </p> <hr> <h3>Launching with multiple arguments</h3> <p>This, for example, launches a JAR file using a specific copy of the Java runtime environment. </p> <pre><code>import subprocess import os current_path = os.getcwd() subprocess.call([current_path + '/contents/home/bin/java', # Param 1 '-jar', #Param2 current_path + '/Whoo.jar']) #param3 </code></pre> <p>Argument 1 targets the program I want to launch. Argument2 supplies an argument <em>to</em> that program telling it that it's going to run a JAR, and finally Argument3 tells the target program where to find the file to open. </p>

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