Read text from the clipboard
        
        Usage: C{clipboard.get_clipboard()}

        @return: text contents of the clipboard
        @rtype: C{str}
        @raise Exception: if no text was found on the clipboard

def get_clipboard(self):
        """
        Read text from the clipboard
        
        Usage: C{clipboard.get_clipboard()}

        @return: text contents of the clipboard
        @rtype: C{str}
        @raise Exception: if no text was found on the clipboard
        """
        Gdk.threads_enter()
        text = self.clipBoard.wait_for_text()
        Gdk.threads_leave()
        if text is not None:
            return text
        else:
            raise Exception("No text found on clipboard")