Iphyton Notebook AttributeError: 'thread._local' object has no attribute 'hooks' - ipython

Question

sf['age'].show(view='Numeric')
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-19-0d0158b5e1d5> in <module>()
----> 1 sf['age'].show(view='Numeric')
/home/anurag/gl-env/local/lib/python2.7/site-packages/graphlab/data_structures/sarray.pyc in show(self, view)
2853 """
2854 from ..visualization.show import show
-> 2855 show(self, view=view)
2856
2857 def item_length(self):
/home/anurag/gl-env/local/lib/python2.7/site-packages/multipledispatch/dispatcher.pyc in __call__(self, *args, **kwargs)
162 self._cache[types] = func
163 try:
--> 164 return func(*args, **kwargs)
165
166 except MDNotImplementedError:
/home/anurag/gl-env/local/lib/python2.7/site-packages/graphlab/canvas/glc_display_dispatch.pyc in show(obj, **kwargs)
19
20 graphlab.canvas.inspect.find_vars(obj)
---> 21 return graphlab.canvas.show(graphlab.canvas.views.sarray.SArrayView(obj, params=kwargs))
22
23
/home/anurag/gl-env/local/lib/python2.7/site-packages/graphlab/canvas/utils.pyc in show(variable)
129 get_target().state.set_selected_variable(variable)
130 variable.validate_js_component_name(variable.get_js_component())
--> 131 return get_target().show()
132
133 def _get_id(ref):
/home/anurag/gl-env/local/lib/python2.7/site-packages/graphlab/canvas/target.pyc in show(self, variable)
175 IPython.core.display.Javascript(
176 data=self.__makeJS(_to_json(data), view.get_js_file(), view.get_js_component()),
--> 177 css=['//cdnjs.cloudflare.com/ajax/libs/font-awesome/4.1.0/css/font-awesome.min.css', self.get_asset_url() + 'css/canvas.css']
178 )
179 )
/home/anurag/gl-env/local/lib/python2.7/site-packages/IPython/core/display.pyc in display_javascript(*objs, **kwargs)
328 Metadata to be associated with the specific mimetype output.
329 """
--> 330 _display_mimetype('application/javascript', objs, **kwargs)
331
332
/home/anurag/gl-env/local/lib/python2.7/site-packages/IPython/core/display.pyc in _display_mimetype(mimetype, objs, raw, metadata)
74 # turn list of pngdata into list of { 'image/png': pngdata }
75 objs = [ {mimetype: obj} for obj in objs ]
---> 76 display(*objs, raw=raw, metadata=metadata, include=[mimetype])
77
78 #-----------------------------------------------------------------------------
/home/anurag/gl-env/local/lib/python2.7/site-packages/IPython/core/display.pyc in display(*objs, **kwargs)
169 # kwarg-specified metadata gets precedence
170 _merge(md_dict, metadata)
--> 171 publish_display_data(data=format_dict, metadata=md_dict)
172
173
/home/anurag/gl-env/local/lib/python2.7/site-packages/IPython/core/display.pyc in publish_display_data(data, metadata, source)
119 InteractiveShell.instance().display_pub.publish(
120 data=data,
--> 121 metadata=metadata,
122 )
123
/home/anurag/gl-env/local/lib/python2.7/site-packages/ipykernel/zmqshell.pyc in publish(self, data, metadata, source)
109 # message or None. If None is returned,
110 # the message has been 'used' and we return.
--> 111 for hook in self.thread_local.hooks:
112 msg = hook(msg)
113 if msg is None:
AttributeError: 'thread._local' object has no attribute 'hooks'
Why I am facing this?

Answer 1

Just make sure to upgrade ipykernel to the latest version (you need at least 4.5.0, which was released on September 2, 2016). This pull request fixed that issue:
pip install --upgrade ipykernel
There was an issue as well in GitHub reporting the problem, which was closed after the pull request was merged and 4.5.0 was released.

Answer 2

I was having the same issue -- if you're still having this problem, downgrading the ipykernel to version 4.3.0 seemed to work for me as a temporary workaround:
pip uninstall ipykernel
pip install ipykernel=4.3.0