I am writing a GUI application using python and Qt. When I launch my application on Mac, the first menu item in the Mac menu bar at the top of the screen is \"Python\". I
I know this isn't what the OP wants exactly, but figured it could add some value to searching for a solution to this issue.
You can make the file menus appear in your window UI instead of in the native Mac OS X system menubar:
menubar.setNativeMenuBar(False)
This will cause the menubar to appear as it would appear in e.g. Windows.