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Allow async cell to process Comm messages - #1565

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davidbrochart wants to merge 3 commits into
ipython:mainfrom
davidbrochart:async-cell-waiting-for-comm-reply
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davidbrochart wants to merge 3 commits into
ipython:mainfrom
davidbrochart:async-cell-waiting-for-comm-reply

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@davidbrochart

@davidbrochart davidbrochart commented Sep 21, 2026

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Fixes #646 #311

This PR fixes the issue of the kernel deadlocking while running a cell that's waiting for a widget event, bringing it up to par with xeus-python.

  • Add tests
  • Implement the feature

@davidbrochart
davidbrochart force-pushed the async-cell-waiting-for-comm-reply branch from 0277213 to b25b1e1 Compare September 21, 2026 15:12
@davidbrochart

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I'll merge and make a release if there is no feedback by tomorrow.

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Async widget methods deadlock due to on_msg not being called

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