Hi there,
I am starting to fit a decently complex plot into JupyterNotebook.
I do the usual yadda-yadda to get it to show up (output_notebook, show(create_figure)) and that works fine.
The server-side logic works, too, e.g., I drag a slider => plot changes.
Now, I would like to manipulate the plot I am displaying in the notebook directly (with code) (I saved a reference to it beforehand).
When I call the manipulating function of the plot I get an error, though, which I think is helpful but I do not know how to avoid it.
ERROR
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call last)
<ipython-input-9-2d4198469974> in <module>
----> 1 a.on_dim_change(0,2)
c:\users\jannik\desktop\xxxxxxxxx\xxxxxx\xxxx\xxxxxx\xxxxx\xxxx\images.py in on_dim_change(self, dim_index, new)
54 new_image = self.handler.get_data()
---> 55 self.img_src.data['image'] = [new_image]
56
57 sel_vals = self.img.get_selected_values()
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\core\property\wrappers.py in __setitem__(self, i, y)
342 # don't wrap with notify_owner --- notifies owners explicitly
343 def __setitem__(self, i, y):
--> 344 return self.update([(i, y)])
345
346 def __copy__(self):
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\core\property\wrappers.py in update(self, *args, **kwargs)
376 for (owner, descriptor) in self._owners:
377 hint = ColumnDataChangedEvent(owner.document, owner, cols=list(cols))
--> 378 descriptor._notify_mutated(owner, old, hint=hint)
379
380 return result
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\core\property\descriptors.py in _notify_mutated(self, obj, old, hint)
884 value = self.property.prepare_value(obj, self.name, value)
885
--> 886 self._real_set(obj, old, value, hint=hint)
887
888 def _trigger(self, obj, old, value, hint=None, setter=None):
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\core\property\descriptors.py in _real_set(self, obj, old, value, hint, setter)
847
848 # for notification purposes, "old" should be the logical old
--> 849 self._trigger(obj, old, value, hint=hint, setter=setter)
850
851 # called when a container is mutated "behind our back" and
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\core\property\descriptors.py in _trigger(self, obj, old, value, hint, setter)
924 """
925 if hasattr(obj, 'trigger'):
--> 926 obj.trigger(self.name, old, value, hint, setter)
927
928
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\model.py in trigger(self, attr, old, new, hint, setter)
680 # chain up to invoke callbacks
681 descriptor = self.lookup(attr)
--> 682 super().trigger(descriptor.name, old, new, hint=hint, setter=setter)
683
684 def _attach_document(self, doc):
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\util\callback_manager.py in trigger(self, attr, old, new, hint, setter)
161 callback(attr, old, new)
162 if hasattr(self, '_document') and self._document is not None:
--> 163 self._document._notify_change(self, attr, old, new, hint, setter, invoke)
164 else:
165 invoke()
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\document\document.py in _notify_change(self, model, attr, old, new, hint, setter, callback_invoker)
1088
1089 event = ModelChangedEvent(self, model, attr, old, new, serializable_new, hint, setter, callback_invoker)
-> 1090 self._trigger_on_change(event)
1091
1092 def _push_all_models_freeze(self):
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\document\document.py in _trigger_on_change(self, event)
1183 for cb in self._callbacks.values():
1184 cb(event)
-> 1185 self._with_self_as_curdoc(invoke_callbacks)
1186
1187 def _with_self_as_curdoc(self, f):
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\document\document.py in _with_self_as_curdoc(self, f)
1196 else:
1197 set_curdoc(self)
-> 1198 return f()
1199 finally:
1200 set_curdoc(old_doc)
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\document\document.py in invoke_callbacks()
1182 def invoke_callbacks():
1183 for cb in self._callbacks.values():
-> 1184 cb(event)
1185 self._with_self_as_curdoc(invoke_callbacks)
1186
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\document\document.py in <lambda>(event)
722 def on_change_dispatch_to(self, receiver):
723 if not receiver in self._callbacks:
--> 724 self._callbacks[receiver] = lambda event: event.dispatch(receiver)
725
726 def on_session_destroyed(self, *callbacks):
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\document\events.py in dispatch(self, receiver)
267
268 '''
--> 269 super().dispatch(receiver)
270 if hasattr(receiver, '_document_model_changed'):
271 receiver._document_model_changed(self)
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\document\events.py in dispatch(self, receiver)
122 super().dispatch(receiver)
123 if hasattr(receiver, '_document_patched'):
--> 124 receiver._document_patched(self)
125
126 def generate(self, references, buffers):
c:\users\jannik\envs\bokehtest\lib\site-packages\bokeh\server\session.py in _document_patched(self, event)
216
217 if self._pending_writes is None:
--> 218 raise RuntimeError("_pending_writes should be non-None when we have a document lock, and we should have the lock when the document changes")
219
220 # TODO (havocp): our "change sync" protocol is flawed because if both
RuntimeError: _pending_writes should be non-None when we have a document lock, and we should have the lock when the document changes
The function in question changes values and updates other figures all over the place.
Usually I’m using the app without JupyterNotebook; do I have to use add_next_tick_callbacks to be compatible with the notebook?
If necessary I can compile an MRE but I was hoping I was just doing something obvious wrong.