get_full_property() throws exceptions

with 0.14+20091101-1, the test.py works well.
$ python test.py
Xlib.protocol.request.QueryExtension
_NET_SUPPORTED is supported
False
_NET_WM_NAME is not supported
True

but with 0.14+20091101-1ubuntu1, it will throw exceptions
$ # python2
$ python test.py
<class 'Xlib.protocol.request.QueryExtension'>
_NET_SUPPORTED is supported
Traceback (most recent call last):
  File "test.py", line 16, in <module>
    print (root.get_full_property(atom, 0) == None)
  File "/usr/lib/python2.7/dist-packages/Xlib/xobject/drawable.py", line 457, in get_full_property
    prop.bytes_after // 4) + 1
TypeError: unsupported operand type(s) for +: 'GetProperty' and 'int'
_NET_WM_NAME is not supported
Traceback (most recent call last):
  File "test.py", line 27, in <module>
    print (root.get_full_property(atom, 0) == None)
  File "/usr/lib/python2.7/dist-packages/Xlib/xobject/drawable.py", line 452, in get_full_property
    prop = self.get_property(property, type, 0, sizehint)
  File "/usr/lib/python2.7/dist-packages/Xlib/xobject/drawable.py", line 441, in get_property
    long_length = length)
  File "/usr/lib/python2.7/dist-packages/Xlib/protocol/rq.py", line 1477, in __init__
    self.reply()
  File "/usr/lib/python2.7/dist-packages/Xlib/protocol/rq.py", line 1489, in reply
    self._display.send_and_recv(request = self._serial)
  File "/usr/lib/python2.7/dist-packages/Xlib/protocol/display.py", line 556, in send_and_recv
    gotreq = self.parse_response(request)
  File "/usr/lib/python2.7/dist-packages/Xlib/protocol/display.py", line 643, in parse_response
    gotreq = self.parse_request_response(request) or gotreq
  File "/usr/lib/python2.7/dist-packages/Xlib/protocol/display.py", line 729, in parse_request_response
    req._parse_response(self.data_recv[:self.request_length])
  File "/usr/lib/python2.7/dist-packages/Xlib/protocol/rq.py", line 1501, in _parse_response
    self._data, d = self._reply.parse_binary(data, self._display, rawdict = 1)
  File "<string>", line 8, in parse_binary
  File "/usr/lib/python2.7/dist-packages/Xlib/protocol/rq.py", line 647, in parse_binary_value
    if type(ret[1]) is bytes:
TypeError: 'NoneType' object has no attribute '__getitem__'

$ # python3
$ python3 test.py
<class 'Xlib.protocol.request.QueryExtension'>
_NET_SUPPORTED is supported
Traceback (most recent call last):
  File "test.py", line 16, in <module>
    print (root.get_full_property(atom, 0) == None)
  File "/usr/lib/python3/dist-packages/Xlib/xobject/drawable.py", line 457, in get_full_property
    prop.bytes_after // 4) + 1
TypeError: unsupported operand type(s) for +: 'GetProperty' and 'int'
_NET_WM_NAME is not supported
Traceback (most recent call last):
  File "test.py", line 27, in <module>
    print (root.get_full_property(atom, 0) == None)
  File "/usr/lib/python3/dist-packages/Xlib/xobject/drawable.py", line 452, in get_full_property
    prop = self.get_property(property, type, 0, sizehint)
  File "/usr/lib/python3/dist-packages/Xlib/xobject/drawable.py", line 441, in get_property
    long_length = length)
  File "/usr/lib/python3/dist-packages/Xlib/protocol/rq.py", line 1477, in __init__
    self.reply()
  File "/usr/lib/python3/dist-packages/Xlib/protocol/rq.py", line 1489, in reply
    self._display.send_and_recv(request = self._serial)
  File "/usr/lib/python3/dist-packages/Xlib/protocol/display.py", line 556, in send_and_recv
    gotreq = self.parse_response(request)
  File "/usr/lib/python3/dist-packages/Xlib/protocol/display.py", line 643, in parse_response
    gotreq = self.parse_request_response(request) or gotreq
  File "/usr/lib/python3/dist-packages/Xlib/protocol/display.py", line 729, in parse_request_response
    req._parse_response(self.data_recv[:self.request_length])
  File "/usr/lib/python3/dist-packages/Xlib/protocol/rq.py", line 1501, in _parse_response
    self._data, d = self._reply.parse_binary(data, self._display, rawdict = 1)
  File "<string>", line 8, in parse_binary
  File "/usr/lib/python3/dist-packages/Xlib/protocol/rq.py", line 647, in parse_binary_value
    if type(ret[1]) is bytes:
TypeError: 'NoneType' object is not subscriptable