 Traceback (most recent call last):

 "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()

 "/usr/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)

 "/usr/lib/python2.7/dist-packages/kivy/input/providers/mtdev.py", line 192, in _thread_run
_device = Device(_fn)

 "/usr/lib/python2.7/dist-packages/kivy/lib/mtdev.py", line 131, in __init__
self._fd = os.open(filename, os.O_NONBLOCK | os.O_RDONLY) OSError: [Errno 13] Permission denied: '/dev/input/event4'
Traceback (most recent call last):

 "C:\Python33\lib\logging__init__.py", line 943, in emit

 "C:\Python33\lib\logging__init__.py", line 923, in flushOSError: [Errno 9] Bad file descriptor