I can only explore each variable when 3<=jupyter lab version <4

[joseal01]

When the version of Jupyter Lab>=4, I can get to the variable explorer menu, but I cannot explore each variable. It works perfectly with all of the version of Jupyter Lab 3.

[Milan-Patel-Researcher]

Describe the bug

Same issue as described by joseal01 within JupyterLab 4.2.5 (Windows 10, Firefox & MS Edge, more version information is below). The variable plot in a 'plain text' manner without the 'rich text' :) functionality, i.e. the datagrid-style viewer & matplotlib inline viewer don't seem to work for me (in that I don't see the magnifying glass). I really love this extension and can provide further info if needed?

To reproduce

# Create a variety of objects to test rendering in Variable Inspector import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
a = [1, 2, 3, 4]
a[0:1] = [5]
b = np.array(list(range(0, 100)))
ax_temp = plt.plot(b);

Then right click in cell and open Variable Inspector
All variables are shown in 'plain text' style, but neither magnifying glass nor datagrid view nor inline matplotlib renderings seem to be available. I could be doing something wrong but not sure what it is.

Runtime environment

• Browser
  • Firefox 131.0.3 & MS Edge 129.0.2792.89
• Language
  • Python 3.11.4
• Interactive
  • IPython 8.27
  • ipykernel 6.29.5
  • JupyterLab 4.2.5
  • ipywidgets 8.1.5
  • jupyterlab_widgets 3.0.13
• Numerical
  • numpy 1.26.2
  • matplotlib 3.8.2
  • pandas 2.1.3

[joseal01]

The only solution I found is to downgrade jupuyter lab to one of the 3 Versions. Apparently this is because the version of the extension has match the jupuyter lab version.

[Milan-Patel-Researcher]

The only solution I found is to downgrade jupuyter lab to one of the 3 Versions. Apparently this is because the version of the extension has match the jupuyter lab version.

thank you!