'thread._local' object has no attribute 'hooks'

[adrianjrandall]

I just installed the newest versions of ipython and GraphLab and noticed this error. Here is the relevant code and the traceback.

# sales is an SFrame
graphlab.canvas.set_target('ipynb')
sales.show(view="Scatter Plot", x="CrimeRate", y="HousePrice")

Traceback:

AttributeErrorTraceback (most recent call last)
<ipython-input-7-6f077ba0dabb> in <module>()
      1 graphlab.canvas.set_target('ipynb')
----> 2 sales.show(view="Scatter Plot", x="CrimeRate", y="HousePrice")

/usr/local/lib/python2.7/site-packages/graphlab/data_structures/sframe.pyc in show(self, columns, view, x, y)
   4950             __LOGGER__.warn("Column selection for SFrame.show is deprecated. To show only certain columns, use the sf[['column1', 'column2']] syntax or construct a new SFrame with the desired columns.")
   4951         from ..visualization.show import show
-> 4952         show(self, view=view, x=x, y=y)
   4953 
   4954     def pack_columns(self, columns=None, column_prefix=None, dtype=list,

/usr/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:

/usr/local/lib/python2.7/site-packages/graphlab/canvas/glc_display_dispatch.pyc in show(obj, **kwargs)
      8     import graphlab.canvas.views.sframe
      9     graphlab.canvas.inspect.find_vars(obj)
---> 10     return graphlab.canvas.show(graphlab.canvas.views.sframe.SFrameView(obj, params=kwargs))
     11 
     12 

/usr/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):

/usr/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         )

/usr/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 

/usr/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 #-----------------------------------------------------------------------------

/usr/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 

/usr/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 

/usr/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'

[adrianjrandall]

This may be a graphlab issue - I noticed when I restarted the kernel and commented out this line:

graphlab.canvas.set_target('ipynb')

It fixed the problem.

[adrianjrandall]

Sorry for the additional comment -- just some additional debugging and a quick workaround for people with a similar issue. I manually uninstalled the ipykernel with:

pip uninstall ipykernel

and reinstalled an older version (4.3.0):

pip install ipykernel==4.3.0

That seemed to temporarily fix the issue..

[takluyver]

You say installing the older version temporarily fixed the issue - did it then recur on that older version? Or are you saying it has fixed it for now?

I had a brief look for the source code of graphlab.canvas.set_target(), but I couldn't see it.

[anelazhari]

I had the same issue and downgrading to ipykernel==4.3.0 fixed it