Installation issue

[Faezov]

• Question about usage? Please search your issue here first: Usage questions: Please ask here first [0] #589 and Usage questions about nglview: Please ask here first [1]  #785

• Version report

python -c 'import nglview; print(nglview.__version__)'
3.0.3

python -c 'import ipywidgets; print(ipywidgets.__version__)'
8.0.6

---

AttributeError Traceback (most recent call last)
Cell In[2], line 3
1 import pymol
2 from pymol import cmd
----> 3 import nglview as nv
4 import requests

File ~/anaconda3/envs/pymol_jupyter/lib/python3.9/site-packages/nglview/init.py:4
1 import warnings
3 # for doc
----> 4 from . import adaptor, datafiles, show, widget
5 from ._version import get_versions
6 from .adaptor import *

File ~/anaconda3/envs/pymol_jupyter/lib/python3.9/site-packages/nglview/show.py:13
3 from . import datafiles
4 from .adaptor import (ASEStructure, ASETrajectory, BiopythonStructure,
5 FileStructure, HTMDTrajectory, IODataStructure,
6 IOTBXStructure, MDAnalysisTrajectory, MDTrajTrajectory,
(...)
11 RdkitStructure,
12 TextStructure)
---> 13 from .widget import NGLWidget
15 all = [
16 'demo',
17 'show_pdbid',
(...)
40 'show_biopython',
41 ]
44 def show_pdbid(pdbid, **kwargs):

File ~/anaconda3/envs/pymol_jupyter/lib/python3.9/site-packages/nglview/widget.py:19
15 from traitlets import (Bool, CaselessStrEnum, Dict, Instance, Int, Integer,
16 List, Unicode, observe, validate)
17 import traitlets
---> 19 from . import color, interpolate
20 from .adaptor import Structure, Trajectory
21 from .component import ComponentViewer

File ~/anaconda3/envs/pymol_jupyter/lib/python3.9/site-packages/nglview/color.py:114
110 else:
111 raise ValueError(f"{obj} must be either list of list or string")
--> 114 ColormakerRegistry = _ColormakerRegistry()

File ~/anaconda3/envs/pymol_jupyter/lib/python3.9/site-packages/nglview/base.py:10, in _singleton..getinstance()
8 def getinstance():
9 if cls not in instances:
---> 10 instances[cls] = cls()
11 return instances[cls]

File ~/anaconda3/envs/pymol_jupyter/lib/python3.9/site-packages/nglview/color.py:47, in _ColormakerRegistry.init(self, *args, **kwargs)
45 try:
46 get_ipython() # only display in notebook
---> 47 self.ipython_display()
48 except NameError:
49 pass

File ~/anaconda3/envs/pymol_jupyter/lib/python3.9/site-packages/nglview/color.py:54, in _ColormakerRegistry.ipython_display(self, **kwargs)
52 if self._ready:
53 return
---> 54 super().ipython_display(**kwargs)

AttributeError: 'super' object has no attribute 'ipython_display'

[hainm]

please either:

• downgrade your ipywidgets from 8 to 7
• install nglview from master branch