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Outputs sometimes dropped from Output widget when updated in subthreads

Status: Open.

#4020 In jupyter-widgets/ipywidgets;

· rawlins opened on May 30, 2026

"Error rendering output item using 'jupyter-ipywidget-renderer'" when running transformers Trainer.train() on Python 3.13

Status: Open.

#4017 In jupyter-widgets/ipywidgets;

· guangdawang opened on Mar 13, 2026

ipywidgets 8.x fails to install on Windows via Poetry due to path length, but 7.7.0 works

Status: Open.

#4013 In jupyter-widgets/ipywidgets;

· enricostragiotti opened on Jan 13, 2026

Async ipywidgets.Output updates from background task only render after next cell in JupyterLab

Status: Open.

#4012 In jupyter-widgets/ipywidgets;

· decitre opened on Dec 25, 2025

Latex Equation Not Displaying

docs

Status: Open.

#4010 In jupyter-widgets/ipywidgets;

· henrydingliu opened on Dec 16, 2025

FileUpload displayed counter should be optional

Status: Open.

#4009 In jupyter-widgets/ipywidgets;

· Arshadwaqas115 opened on Nov 26, 2025

Errorneous color names in trait_types for color widget

Status: Open.

#4007 In jupyter-widgets/ipywidgets;

· matthewyu0311 opened on Nov 25, 2025

conda package

Status: Open.

#4005 In jupyter-widgets/ipywidgets;

· baugetfa opened on Nov 3, 2025

Text widgets do not respect on-demand execution

Status: Open.

#3997 In jupyter-widgets/ipywidgets;

· asemptote opened on Sep 17, 2025

Button.on_click() handler is called twice for a single click

Status: Open.

#3996 In jupyter-widgets/ipywidgets;

· decitre opened on Aug 3, 2025

Comms not cleared after re-executing cell with ipywidgets

Status: Open.

#3995 In jupyter-widgets/ipywidgets;

· bd-Kwasniewski opened on Jul 29, 2025

Using pen input is difficult with widgets due to context menu triggering

Status: Open.

#3994 In jupyter-widgets/ipywidgets;

· martenrichter opened on Jul 5, 2025