key error in jupyter notebook using brainrender

Hello,

I am very new to these things thus sorry if I am not giving you enough informations about the issue !

to resume

I am trying to plot the coordinate of a group of cells in a 3D brain by using brainrender with jupyter notebook

I am using an anaconda environnement with the version 3.7.0 of python and the version of my anaconda navigator is 1.9.6.

my scirpt is working until this entry :

#Get a numpy array coordinates of some labelled cells
scene = Scene(title='area_cell') 
MOx = scene.add_brain_region("MO", alpha=0.15)
SSx = scene.add_brain_region("SS", alpha=0.15)
VISx = scene.add_brain_region("VIS", alpha=0.15)
#STRx = scene.add_brain_region("STR", alpha=0.15)

KeyError                                  Traceback (most recent call last)
~\AppData\Local\Temp\ipykernel_16228\2284008602.py in <module>
      1 #Get a numpy array coordinates of some labelled cells
----> 2 scene = Scene(title='area_cell')
      3 MOx = scene.add_brain_region("MO", alpha=0.15)
      4 SSx = scene.add_brain_region("SS", alpha=0.15)
      5 VISx = scene.add_brain_region("VIS", alpha=0.15)

~\Anaconda2\envs\plot3Dbrain\lib\site-packages\brainrender\scene.py in __init__(self, root, atlas_name, inset, title, screenshots_folder, plotter, title_color)
     48             f"Creating scene with parameters: root: {root}, atlas_name: '{atlas_name}'', inset: {inset}, screenshots_folder: {screenshots_folder}"
     49         )
---> 50         JupyterMixIn.__init__(self)
     51 
     52         self.actors = []  # stores all actors in the scene

~\Anaconda2\envs\plot3Dbrain\lib\site-packages\brainrender\_jupyter.py in __init__(self)
     10     def __init__(self):  # pragma: no cover
     11         # keep track if we are in a jupyter notebook
---> 12         if vedo.settings.notebookBackend == "k3d":
     13             self.backend = "k3d"
     14         elif vedo.settings.notebookBackend == "itkwidgets":

~\Anaconda2\envs\plot3Dbrain\lib\site-packages\vedo\utils.py in __getattr__(self, k)
    236 
    237     def __getattr__(self, k):
--> 238         return self[k]
    239 
    240     def __setattr__(self, k, v):

KeyError: 'notebookBackend'

I tried unsuccessfully to understand what was going wrong and to find someonne with the same issue, thus if you have idea it would be great !

also let me know if you need more informations,

Thanks !

Tái hiện traceback trong thiết lập Anaconda/Jupyter được báo cáo, sau đó kiểm tra brainrender/scene.py và brainrender/_jupyter.py, nơi vedo.settings.notebookBackend được truy cập. Hoàn thành có nghĩa là Scene(...) khởi tạo mà không gặp KeyError đã báo cáo trong đường dẫn notebook, kèm theo kiểm tra hồi quy cho thiết lập này.