title: cx oracle python interface error : unable to acquire oracle environment handle
body: <p>I have big problem with my program written in Python 2.7.11.</p>
  
  <p>When program is executed from PyCharm IDE everything is OK. Then I use pyinstaller to maxe .exe for windows. Running the .exe file couses only one error: </p>
  
  <p>cx_Oracle.InterfaceError: Unable to acquire Oracle environment handle.</p>
  
  <p>This problem is different than others because everything is fine in python environment. Only making .exe causes error.</p>
  
  <p><a href="http://i.stack.imgur.com/EeK94.jpg" rel="nofollow">my path variable on windows</a></p>