FigureWidget doesn't allow draggable polygon

Ninguém assumiu esta issue ainda.

Using the following minimal code I wasn't able to draw a closed path and then drag and drop the polygon. Check the full error code.

from plotly.graph_objs._figurewidget import FigureWidget

FigureWidget(
    layout={
        'modebar': {
            "add": [
                "drawclosedpath",
                "eraseshape",
            ]
        },
    }
)

Full error code

ValueError                                Traceback (most recent call last)
File ~/micromamba/envs/streetsurface/lib/python3.10/site-packages/ipywidgets/widgets/widget.py:773, in Widget._handle_msg(self, msg)
    771         if 'buffer_paths' in data:
    772             _put_buffers(state, data['buffer_paths'], msg['buffers'])
--> 773         self.set_state(state)
    775 # Handle a state request.
    776 elif method == 'request_state':

File ~/micromamba/envs/streetsurface/lib/python3.10/site-packages/ipywidgets/widgets/widget.py:650, in Widget.set_state(self, sync_data)
    645         self._send(msg, buffers=echo_buffers)
    647 # The order of these context managers is important. Properties must
    648 # be locked when the hold_trait_notification context manager is
    649 # released and notifications are fired.
--> 650 with self._lock_property(**sync_data), self.hold_trait_notifications():
    651     for name in sync_data:
    652         if name in self.keys:

File ~/micromamba/envs/streetsurface/lib/python3.10/contextlib.py:142, in _GeneratorContextManager.__exit__(self, typ, value, traceback)
    140 if typ is None:
    141     try:
--> 142         next(self.gen)
    143     except StopIteration:
    144         return False

File ~/micromamba/envs/streetsurface/lib/python3.10/site-packages/traitlets/traitlets.py:1502, in HasTraits.hold_trait_notifications(self)
   1500 for changes in cache.values():
   1501     for change in changes:
-> 1502         self.notify_change(change)

File ~/micromamba/envs/streetsurface/lib/python3.10/site-packages/ipywidgets/widgets/widget.py:701, in Widget.notify_change(self, change)
    698     if name in self.keys and self._should_send_property(name, getattr(self, name)):
    699         # Send new state to front-end
    700         self.send_state(key=name)
--> 701 super().notify_change(change)

File ~/micromamba/envs/streetsurface/lib/python3.10/site-packages/traitlets/traitlets.py:1517, in HasTraits.notify_change(self, change)
   1515 def notify_change(self, change):
   1516     """Notify observers of a change event"""
-> 1517     return self._notify_observers(change)

File ~/micromamba/envs/streetsurface/lib/python3.10/site-packages/traitlets/traitlets.py:1564, in HasTraits._notify_observers(self, event)
   1561 elif isinstance(c, EventHandler) and c.name is not None:
   1562     c = getattr(self, c.name)
-> 1564 c(event)

File ~/micromamba/envs/streetsurface/lib/python3.10/site-packages/plotly/basewidget.py:644, in BaseFigureWidget._handler_js2py_relayout(self, change)
    640     relayout_data.pop("lastInputTime")
    642 # Perform relayout
    643 # ----------------
--> 644 self.plotly_relayout(relayout_data=relayout_data, source_view_id=source_view_id)
    646 self._js2py_relayout = None

File ~/micromamba/envs/streetsurface/lib/python3.10/site-packages/plotly/basedatatypes.py:2612, in BaseFigure.plotly_relayout(self, relayout_data, **kwargs)
   2608     msg_kwargs = {}
   2610 # Perform relayout operation on layout dict
   2611 # -----------------------------------------
-> 2612 relayout_changes = self._perform_plotly_relayout(relayout_data)
   2613 if relayout_changes:
   2614     # The relayout operation resulted in a change to some layout
   2615     # properties, so we dispatch change callbacks and send the
   2616     # relayout message to the frontend (if any)
   2617     self._send_relayout_msg(relayout_changes, **msg_kwargs)

File ~/micromamba/envs/streetsurface/lib/python3.10/site-packages/plotly/basedatatypes.py:2648, in BaseFigure._perform_plotly_relayout(self, relayout_data)
   2644         for key_path_str, v in relayout_data.items():
   2646             if not BaseFigure._is_key_path_compatible(key_path_str, self.layout):
-> 2648                 raise ValueError(
   2649                     """
   2650 Invalid property path '{key_path_str}' for layout
   2651 """.format(
   2652                         key_path_str=key_path_str
   2653                     )
   2654                 )
   2656             # Apply set operation on the layout dict
   2657             val_changed = BaseFigure._set_in(self._layout, key_path_str, v)

ValueError: 
Invalid property path 'shapes[0].path' for layout

Comece reproduzindo o exemplo mínimo de FigureWidget e siga BaseFigureWidget._handler_js2py_relayout até BaseFigure._perform_plotly_relayout, onde o erro é levantado devido ao caminho de propriedade inválido shapes[0].path. Verifique como drawclosedpath e o arraste atualizam os shapes do layout e, em seguida, confirme que desenhar e arrastar um polígono fechado não gera mais esse erro.

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