Support for Python 3.14 #2828

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1. dosubot commented on Mar 7, 2026

   

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   on Mar 7, 2026 – with DosuBot

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   This is a known issue. The main blocker was the watchfiles dependency, which was previously pinned to >=0.20.0,<1.0.0. This has been updated to >=1.1.1,<2.0.0 in the codebase via PR #2680.

   There's also a related issue #2767 tracking Python 3.14 compatibility problems (anyio.NoEventLoopError) caused by this constraint.

   If you're on the latest released version and still hitting issues, the fix may not have been published yet. Additionally, literalai is pinned to an exact version (0.1.201) which could potentially cause issues if it doesn't support Python 3.14. Are there specific dependencies or errors you're encountering?

   To reply, just mention @dosu.

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   backendPertains to the Python backend.Pertains to the Python backend.

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3. yasonk commented on Mar 8, 2026

   

   yasonk

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   @dosu PR #2733 already bumped watchfile and supercedes PR #2680, which is now closed and obsolete. However, the final problem is that liberal ai version 201 doesn't support python 3.14, so need to bump that up to 300
4. dosubot commented on Mar 8, 2026

   

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   Thanks for the correction! You're right that PR #2733 already handled the watchfiles bump (released in v2.9.4).

   The remaining blocker is indeed literalai==0.1.201. If bumping it to 0.1.300 resolves Python 3.14 compatibility, a PR updating that constraint would be the next step toward full Python 3.14 support.

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5. uu9 commented on Mar 16, 2026

   

   uu9

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   Besides literalai, there's another dependency chain related:

   chainlit → semantic-kernel → pydantic (v2.11.10) → Python < 3.14

   This means semantic-kernel also restricts Python version to below 3.14 (via its transitive dependency on pydantic v2.11.10, which dropped support for Python 3.14+).

   microsoft/semantic-kernel#13246
6. github-actions commented on Mar 31, 2026

   

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   This issue is stale because it has been open for 14 days with no activity.
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8. yasonk commented on Mar 31, 2026

   

   yasonk

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   Looks like pydantic and semantic-kernel support is back on, which means this ticket is again pretty easy to fix
9. github-actions

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10. github-actions commented on Apr 15, 2026

    

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    This issue is stale because it has been open for 14 days with no activity.
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12. yasonk commented on Apr 16, 2026

    

    yasonk

    on Apr 16, 2026

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    Would be nice if someone could spend some Claude Code tokens to fix this :)
13. github-actions

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    on Apr 17, 2026
14. yasonk commented on Apr 27, 2026

    

    yasonk

    on Apr 27, 2026

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    I do think this is pretty important. Has anyone attempted to use chainlit with python 3.14?
15. github-actions commented on May 13, 2026

    

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    This issue is stale because it has been open for 14 days with no activity.
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17. github-actions commented on May 20, 2026

    

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    This issue was closed because it has been inactive for 7 days since being marked as stale.
18. github-actions

    closed this as not plannedon May 20, 2026