iprogress not found. please update jupyter and ipywidgets

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09-03-2025

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"IPython.display.IPProgress" not found: Updating Jupyter and IPywidgets

Encountering the error "IPython.display.IPProgress not found" in your Jupyter Notebook or JupyterLab environment often points to outdated versions of Jupyter and its associated packages, particularly ipywidgets. This error prevents the use of progress bars and other interactive widgets, hindering the smooth execution of lengthy computations. This article guides you through troubleshooting and resolving this issue.

Understanding the Error

The IPython.display.IPProgress class was a part of the IPython ecosystem. However, modern Jupyter environments rely on ipywidgets for interactive elements. The error arises because your code is trying to access an outdated or deprecated function. The solution involves updating your Jupyter environment and installing (or reinstalling) ipywidgets.

Troubleshooting and Solutions

1. Check Your Python Environment: Ensure you're using a Python environment where you've installed Jupyter and ipywidgets. If you're working in a virtual environment (highly recommended!), activate it before proceeding.

2. Update ipywidgets: The most common cause is an outdated ipywidgets package. Open your terminal or command prompt and use pip (or conda if you're using Anaconda) to update it:

   pip install --upgrade ipywidgets
   

   or

   conda update -c conda-forge ipywidgets
   

3. Update Jupyter: While less likely to be the direct cause, an outdated Jupyter installation can sometimes cause conflicts. Update Jupyter itself:

   pip install --upgrade jupyter
   

   or

   conda update -c conda-forge jupyter
   

4. Reinstall ipywidgets: If updating doesn't work, try a complete reinstallation:

   pip uninstall ipywidgets
   pip install ipywidgets
   

   or

   conda remove ipywidgets
   conda install -c conda-forge ipywidgets
   

5. Restart Jupyter: After updating or reinstalling, restart your Jupyter Notebook or JupyterLab server. This ensures that the updated packages are loaded correctly.

6. Kernel Restart: Within your Jupyter Notebook, select "Kernel" -> "Restart & Clear Output" from the menu. This forces the notebook to reload the updated packages.

7. Check for Conflicting Packages: Occasionally, conflicts with other packages can arise. If the problem persists, consider creating a new, clean virtual environment to rule out any such conflicts.

8. Check for JupyterLab Extensions: If you're using JupyterLab, ensure you have the necessary extensions installed and enabled. Try disabling and re-enabling the ipywidgets extension.

Verifying the Installation

After following these steps, open a new Jupyter Notebook cell and execute the following code:

import ipywidgets as widgets
from IPython.display import display

progress = widgets.IntProgress(min=0, max=100)
display(progress)

for i in range(101):
    progress.value = i
    time.sleep(0.02) #Optional: Simulate work

If a progress bar appears and increments successfully, the problem is resolved. If you still encounter errors, provide the full error message and your operating system information for more specific assistance.

Moving Forward with ipywidgets

Remember to use the appropriate ipywidgets functions instead of the deprecated IPython.display.IPProgress. The widgets.IntProgress (as shown above) is the modern equivalent. Explore the rich functionalities offered by the ipywidgets library for enhancing your interactive Jupyter experiences.