title: exec child_process in a node js module
body: <p>I'm createing a node module that I want to have a function called cpuUtilization that calls a python script and the stdout is returned.</p>
  
  <pre><code>var sys = require('sys')
  var exec = require('child_process').exec;
  
  exports.cpuUtilization = function() {
      exec('./nodeprime/cpuUtilization.py', function (error, stdout, stderr) {
          return(JSON.parse(stdout));
      });
  }
  </code></pre>