Latest pip installation is not working

[daquintero]

Tried basic import after running pip install pythreejs, didn't work.

Error on import pythreejs

~\anaconda3\lib\site-packages\ipydatawidgets\ndarray\union.py in subclass_init(self, cls)
     57 
     58     def subclass_init(self, cls):
---> 59         cls._instance_inits.append(self.instance_init)
     60         return super().subclass_init(cls)
     61 

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

Default pip installation

$ pip install pythreejs
Collecting pythreejs
  Downloading pythreejs-2.4.2-py3-none-any.whl (3.4 MB)
     |████████████████████████████████| 3.4 MB 6.4 MB/s
Requirement already satisfied: numpy in c:\users\dario\anaconda3\lib\site-packages (from pythreejs) (1.20.3)
Requirement already satisfied: ipywidgets>=7.2.1 in c:\users\dario\anaconda3\lib\site-packages (from pythreejs) (7.6.5)
Requirement already satisfied: traitlets in c:\users\dario\anaconda3\lib\site-packages (from pythreejs) (5.1.0)
Collecting ipydatawidgets>=1.1.1
  Downloading ipydatawidgets-4.3.3-py2.py3-none-any.whl (271 kB)
     |████████████████████████████████| 271 kB 6.4 MB/s
Collecting traittypes>=0.2.0
  Downloading traittypes-0.2.1-py2.py3-none-any.whl (8.6 kB)
Requirement already satisfied: ipykernel>=4.5.1 in c:\users\dario\anaconda3\lib\site-packages (from ipywidgets>=7.2.1->pythreejs) (6.4.1)
Requirement already satisfied: ipython>=4.0.0 in c:\users\dario\anaconda3\lib\site-packages (from ipywidgets>=7.2.1->pythreejs) (7.29.0)
Requirement already satisfied: jupyterlab-widgets>=1.0.0 in c:\users\dario\anaconda3\lib\site-packages (from ipywidgets>=7.2.1->pythreejs) (1.0.0)
Requirement already satisfied: nbformat>=4.2.0 in c:\users\dario\anaconda3\lib\site-packages (from ipywidgets>=7.2.1->pythreejs) (5.1.3)
Requirement already satisfied: widgetsnbextension~=3.5.0 in c:\users\dario\anaconda3\lib\site-packages (from ipywidgets>=7.2.1->pythreejs) (3.5.1)
Requirement already satisfied: ipython-genutils~=0.2.0 in c:\users\dario\anaconda3\lib\site-packages (from ipywidgets>=7.2.1->pythreejs) (0.2.0)
Requirement already satisfied: matplotlib-inline<0.2.0,>=0.1.0 in c:\users\dario\anaconda3\lib\site-packages (from ipykernel>=4.5.1->ipywidgets>=7.2.1->pythreejs) (0.1.2)
Requirement already satisfied: jupyter-client<8.0 in c:\users\dario\anaconda3\lib\site-packages (from ipykernel>=4.5.1->ipywidgets>=7.2.1->pythreejs) (6.1.12)
Requirement already satisfied: debugpy<2.0,>=1.0.0 in c:\users\dario\anaconda3\lib\site-packages (from ipykernel>=4.5.1->ipywidgets>=7.2.1->pythreejs) (1.4.1)
Requirement already satisfied: tornado<7.0,>=4.2 in c:\users\dario\anaconda3\lib\site-packages (from ipykernel>=4.5.1->ipywidgets>=7.2.1->pythreejs) (6.1)
Requirement already satisfied: decorator in c:\users\dario\anaconda3\lib\site-packages (from ipython>=4.0.0->ipywidgets>=7.2.1->pythreejs) (5.1.0)
Requirement already satisfied: pygments in c:\users\dario\anaconda3\lib\site-packages (from ipython>=4.0.0->ipywidgets>=7.2.1->pythreejs) (2.14.0)
Requirement already satisfied: backcall in c:\users\dario\anaconda3\lib\site-packages (from ipython>=4.0.0->ipywidgets>=7.2.1->pythreejs) (0.2.0)
Requirement already satisfied: pickleshare in c:\users\dario\anaconda3\lib\site-packages (from ipython>=4.0.0->ipywidgets>=7.2.1->pythreejs) (0.7.5)
Requirement already satisfied: colorama in c:\users\dario\anaconda3\lib\site-packages (from ipython>=4.0.0->ipywidgets>=7.2.1->pythreejs) (0.4.4)
Requirement already satisfied: jedi>=0.16 in c:\users\dario\anaconda3\lib\site-packages (from ipython>=4.0.0->ipywidgets>=7.2.1->pythreejs) (0.18.0)
Requirement already satisfied: setuptools>=18.5 in c:\users\dario\anaconda3\lib\site-packages (from ipython>=4.0.0->ipywidgets>=7.2.1->pythreejs) (58.0.4)
Requirement already satisfied: prompt-toolkit!=3.0.0,!=3.0.1,<3.1.0,>=2.0.0 in c:\users\dario\anaconda3\lib\site-packages (from ipython>=4.0.0->ipywidgets>=7.2.1->pythreejs) (3.0.20)
Requirement already satisfied: parso<0.9.0,>=0.8.0 in c:\users\dario\anaconda3\lib\site-packages (from jedi>=0.16->ipython>=4.0.0->ipywidgets>=7.2.1->pythreejs) (0.8.2)
Requirement already satisfied: jupyter-core>=4.6.0 in c:\users\dario\anaconda3\lib\site-packages (from jupyter-client<8.0->ipykernel>=4.5.1->ipywidgets>=7.2.1->pythreejs) (4.8.1)
Requirement already satisfied: python-dateutil>=2.1 in c:\users\dario\anaconda3\lib\site-packages (from jupyter-client<8.0->ipykernel>=4.5.1->ipywidgets>=7.2.1->pythreejs) (2.8.2)
Requirement already satisfied: pyzmq>=13 in c:\users\dario\anaconda3\lib\site-packages (from jupyter-client<8.0->ipykernel>=4.5.1->ipywidgets>=7.2.1->pythreejs) (22.2.1)
Requirement already satisfied: pywin32>=1.0 in c:\users\dario\anaconda3\lib\site-packages (from jupyter-core>=4.6.0->jupyter-client<8.0->ipykernel>=4.5.1->ipywidgets>=7.2.1->pythreejs) (228)
Requirement already satisfied: jsonschema!=2.5.0,>=2.4 in c:\users\dario\anaconda3\lib\site-packages (from nbformat>=4.2.0->ipywidgets>=7.2.1->pythreejs) (3.2.0)
Requirement already satisfied: six>=1.11.0 in c:\users\dario\anaconda3\lib\site-packages (from jsonschema!=2.5.0,>=2.4->nbformat>=4.2.0->ipywidgets>=7.2.1->pythreejs) (1.16.0)
Requirement already satisfied: pyrsistent>=0.14.0 in c:\users\dario\anaconda3\lib\site-packages (from jsonschema!=2.5.0,>=2.4->nbformat>=4.2.0->ipywidgets>=7.2.1->pythreejs) (0.18.0)
Requirement already satisfied: attrs>=17.4.0 in c:\users\dario\anaconda3\lib\site-packages (from jsonschema!=2.5.0,>=2.4->nbformat>=4.2.0->ipywidgets>=7.2.1->pythreejs) (21.2.0)
Requirement already satisfied: wcwidth in c:\users\dario\anaconda3\lib\site-packages (from prompt-toolkit!=3.0.0,!=3.0.1,<3.1.0,>=2.0.0->ipython>=4.0.0->ipywidgets>=7.2.1->pythreejs) (0.2.5)
Requirement already satisfied: notebook>=4.4.1 in c:\users\dario\anaconda3\lib\site-packages (from widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (6.4.5)
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Requirement already satisfied: nbconvert in c:\users\dario\anaconda3\lib\site-packages (from notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (6.1.0)
Requirement already satisfied: Send2Trash>=1.5.0 in c:\users\dario\anaconda3\lib\site-packages (from notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (1.8.0)
Requirement already satisfied: terminado>=0.8.3 in c:\users\dario\anaconda3\lib\site-packages (from notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (0.9.4)
Requirement already satisfied: jinja2 in c:\users\dario\anaconda3\lib\site-packages (from notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (2.11.3)
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Requirement already satisfied: pywinpty>=0.5 in c:\users\dario\anaconda3\lib\site-packages (from terminado>=0.8.3->notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (0.5.7)
Requirement already satisfied: cffi>=1.0.0 in c:\users\dario\anaconda3\lib\site-packages (from argon2-cffi->notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (1.14.6)
Requirement already satisfied: pycparser in c:\users\dario\anaconda3\lib\site-packages (from cffi>=1.0.0->argon2-cffi->notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (2.20)
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Requirement already satisfied: bleach in c:\users\dario\anaconda3\lib\site-packages (from nbconvert->notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (4.0.0)
Requirement already satisfied: nest-asyncio in c:\users\dario\anaconda3\lib\site-packages (from nbclient<0.6.0,>=0.5.0->nbconvert->notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (1.5.1)
Requirement already satisfied: async-generator in c:\users\dario\anaconda3\lib\site-packages (from nbclient<0.6.0,>=0.5.0->nbconvert->notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (1.10)
Requirement already satisfied: packaging in c:\users\dario\anaconda3\lib\site-packages (from bleach->nbconvert->notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (21.0)
Requirement already satisfied: webencodings in c:\users\dario\anaconda3\lib\site-packages (from bleach->nbconvert->notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (0.5.1)
Requirement already satisfied: pyparsing>=2.0.2 in c:\users\dario\anaconda3\lib\site-packages (from packaging->bleach->nbconvert->notebook>=4.4.1->widgetsnbextension~=3.5.0->ipywidgets>=7.2.1->pythreejs) (3.0.4)
Installing collected packages: traittypes, ipydatawidgets, pythreejs
Successfully installed ipydatawidgets-4.3.3 pythreejs-2.4.2 traittypes-0.2.1

Related to vidartf/ipydatawidgets#57

Solved via pip install ipydatawidgets==4.3.2

Runtime Environment:
$ python --version -v
Python 3.9.7

[daquintero]

It was a product of the conda environement. I reinstalled Anaconda and installed everything carefully and it is working now well.