Import issues: AttributeError: type object 'DataImage' has no attribute '_instance_inits'

[HollowHeartNet]

Hi,

I have installed stpyvista via pip install stpyvista without any issues. When I try to import stpyvista in Python from stpyvista import stpyvista, I get the following error message:

2023-03-14 13:28:03.023 Uncaught app exception
Traceback (most recent call last):
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\streamlit\runtime\scriptrunner\script_runner.py", line 565, in _run_script
    exec(code, module.__dict__)
  File "C:\Users\Desktop\stpvista_test.py", line 3, in <module>
    from stpyvista import stpyvista
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\stpyvista\__init__.py", line 10, in <module>
    pv.set_jupyter_backend('pythreejs')
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\pyvista\jupyter\__init__.py", line 141, in set_jupyter_backend
    pyvista.global_theme._jupyter_backend = _validate_jupyter_backend(backend)
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\pyvista\jupyter\__init__.py", line 43, in _validate_jupyter_backend
    import pythreejs
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\pythreejs\__init__.py", line 6, in <module>
    from .pythreejs import *
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\pythreejs\pythreejs.py", line 20, in <module>
    from .core.BufferAttribute import BufferAttribute
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\pythreejs\core\BufferAttribute.py", line 4, in <module>
    from .BufferAttribute_autogen import BufferAttribute as BaseBufferAttribute
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\pythreejs\core\BufferAttribute_autogen.py", line 13, in <module>
    from ..traits import *
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\pythreejs\traits.py", line 18, in <module>
    from ipydatawidgets import DataUnion, NDArrayWidget, shape_constraints
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\ipydatawidgets\__init__.py", line 7, in <module>
    from .ndarray import *
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\ipydatawidgets\ndarray\__init__.py", line 7, in <module>
    from .media import DataImage
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\ipydatawidgets\ndarray\media.py", line 17, in <module>
    class DataImage(DataWidget, DOMWidget):
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\traitlets\traitlets.py", line 958, in __init__
    cls.setup_class(classdict)
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\traitlets\traitlets.py", line 981, in setup_class
    super().setup_class(classdict)
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\traitlets\traitlets.py", line 973, in setup_class
    v.subclass_init(cls)
  File "C:\Users\miniconda3\envs\CloudComPy310\lib\site-packages\ipydatawidgets\ndarray\union.py", line 59, in subclass_init
    cls._instance_inits.append(self.instance_init)
AttributeError: type object 'DataImage' has no attribute '_instance_inits'

Can someone please help?
FYI: I am using miniconda3 with Python 3.10.

[edsaac]

stpyvista moved away from pythreejs and is currently using panel as the rendering backend.

Check if upgrading to version >=0.0.7 works for you (pip install stpyvista -U).