title: how to update same file
body: <p>I have the following scenario:</p>
  
  <p>I have an application developed in Python 2.7 that has only a file and used the <a href="https://github.com/pyinstaller/pyinstaller/wiki" rel="nofollow">pyinstaller</a> to generate the torque it. But I need to deploy a autoupdate this file.</p>
  
  <p>This application runs as a service and managed by <a href="http://nssm.cc/" rel="nofollow">NSSM</a> in Windows</p>
  
  <p>How best can I perform this update?</p>
  
  <p>Thanks </p>