TessTargetPixelFile .interact() throws an exception

Using the example alert data on MAST, TessTargetPixelFile works to read the TPF in, but .interact() crashes with the following error message:

from lightkurve.targetpixelfile import TessTargetPixelFile
tpf = TessTargetPixelFile('tess-data-alerts/hlsp_tess-data-alerts_tess_phot_00260304296-s02_tess_v1_tp.fits')

tpf.interact()

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-102-7bfcb21a8385> in <module>()
----> 1 tpf.interact()

~/anaconda3/lib/python3.6/site-packages/lightkurve/targetpixelfile.py in interact(self, lc, notebook_url, max_cadences)
    583         from .interact import show_interact_widget
    584         return show_interact_widget(self, lc=lc, notebook_url=notebook_url,
--> 585                                     max_cadences=max_cadences)
    586 
    587 

~/anaconda3/lib/python3.6/site-packages/lightkurve/interact.py in show_interact_widget(tpf, lc, notebook_url, max_cadences)
    408 
    409     output_notebook(verbose=False, hide_banner=True)
--> 410     return show(create_interact_ui, notebook_url=notebook_url)

~/anaconda3/lib/python3.6/site-packages/bokeh/util/api.py in wrapper(*args, **kw)

~/anaconda3/lib/python3.6/site-packages/bokeh/io/showing.py in show(obj, browser, new, notebook_handle, notebook_url)
    124 
    125     if not (isinstance(obj, LayoutDOM) or is_application or callable(obj)):
--> 126         raise ValueError(_BAD_SHOW_MSG)
    127 
    128     # TODO (bev) check callable signature more thoroughly

~/anaconda3/lib/python3.6/site-packages/bokeh/document/document.py in add_root(self, model, setter)
    241 
    242         '''
--> 243         from ..server.callbacks import NextTickCallback
    244         cb = NextTickCallback(self, None)
    245         return self._add_session_callback(cb, callback, one_shot=True, originator=self.add_next_tick_callback)

~/anaconda3/lib/python3.6/site-packages/bokeh/document/document.py in _pop_all_models_freeze(self)
    921         callback_obj._callback = self._wrap_with_self_as_curdoc(actual_callback)
    922         self._session_callbacks.add(callback_obj)
--> 923         self._callback_objs_by_callable[originator][callback].add(callback_obj)
    924 
    925         # emit event so the session is notified of the new callback

~/anaconda3/lib/python3.6/site-packages/bokeh/document/document.py in _recompute_all_models(self)
    929 
    930     def _destructively_move(self, dest_doc):
--> 931         ''' Move all data in this doc to the dest_doc, leaving this doc empty.
    932 
    933         Args:

AttributeError: 'function' object has no attribute 'references'

Environment:

• MacOS, Python 3.6.6
• lightkurve version 1.0b21
• installation method: pip
• bokeh-1.0.1 updated via conda

[jradavenport]

OK, I can get the same thing now. Maybe Jupyter was seeing something stale previously… grumble. Thanks for following up!!

[barentsen]

@gully Let’s investigate this a bit more. I am unable to reproduce this issue with bokeh 1.0.1; Linux Python 3.6.6; master branch (which has no changes to interact compared to 1.0b21). Can you reproduce on your end?