title: Non-intrusively unlock file on Windows
body: <p>Is there a way to unlock a file on Windows with a Python script? The file is exclusively locked by another process. I need a solution without killing or interupting the locking process.</p>
  
  <p>I already had a look at <a href="http://code.activestate.com/recipes/65203/" rel="nofollow noreferrer">portalocker</a>, a portable locking implementation. But this needs a file handle to unlock, which I can not get, as the file is already locked by the locking process.</p>
  
  <p>If there is no way, could someone lead me to the Windows API doc which describes the problem further?</p>