For 3.15, require tiktoken >= 0.14.0 and numpy >= 2.5.2

[Guido van Rossum (gvanrossum)]

I can now run uv run --python 3.15 pytest successfully on macOS. Only three packages are still built from source: regex, aiohttp and jiter. They build quickly. Previously, tiktoken failed to build from source unless you had rustc installed; numpy built successfully but very slowly. So this is major progress. Expect more wheel updates for the others.

[Guido van Rossum (gvanrossum)]

Bernhard Merkle (@bmerkle) Could you test this on Windows before approving?

[Guido van Rossum (gvanrossum)]

Thanks robgruen! How are things?

[robgruen]

GREAT! Just got back from 2.5 week vacation so feeling very refreshed. Hopefully your travels were as nice as mine!

…

________________________________ From: Guido van Rossum ***@***.***> Sent: Friday, August 21, 2026 10:01 AM To: microsoft/typeagent-py ***@***.***> Cc: Robert Gruen ***@***.***>; Mention ***@***.***> Subject: Re: [microsoft/typeagent-py] For 3.15, require tiktoken >= 0.14.0 and numpy >= 2.5.2 (PR #316) [https://avatars.githubusercontent.com/u/2894642?s=20&v=4]gvanrossum left a comment (microsoft/typeagent-py#316)<#316?email_source=notifications&email_token=AGBS6WIHS52IQORB3MO3OGT5LB553A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKMZXGI4DKMZVGIZKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJNLQOJPWG33NNVSW45C7N5YGK3S7MNWGSY3L#issuecomment-5372853522> Thanks robgruen<https://github.com/robgruen>! How are things? — Reply to this email directly, view it on GitHub<#316?email_source=notifications&email_token=AGBS6WIHS52IQORB3MO3OGT5LB553A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKMZXGI4DKMZVGIZKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJNLQOJPWG33NNVSW45C7N5YGK3S7MNWGSY3L#issuecomment-5372853522>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AGBS6WJUW2U3VJZA3PPXWOL5LB553AVCNFSNUABGKJSXA33TNF2G64TZHMYTANJTGY4TKMBXHE5US43TOVSTWNJRHA4DENBWHEYDLILWAI>. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS<https://github.com/notifications/mobile/ios/AGBS6WN7UZIP2MTJMKNZ4GD5LB553A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKMZXGI4DKMZVGIZKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJKTGN5XXIZLSL5UW64Y> and Android<https://github.com/notifications/mobile/android/AGBS6WK3G2S52NK2KFHG2SD5LB553A5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTKMZXGI4DKMZVGIZKM4TFMFZW63VHNVSW45DJN5XKKZLWMVXHJLTGN5XXIZLSL5QW4ZDSN5UWI>. Download it today! You are receiving this because you were mentioned.Message ID: ***@***.***>

[Bernhard Merkle (bmerkle)]

Hi, i tested on a plain new Windows box:

uv run --python 3.15 pytest

  [stderr]
  error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools":
  https://visualstudio.microsoft.com/visual-cpp-build-tools/

question:
should be add the info that we now require clang (Mac/Linux) and cl.exe (Windows) because some wheels have to be build on the machine ?

PS. I am also back from vacation :-)

[Bernhard Merkle (bmerkle)]

PS C:\work\typeagent-py> uv run --python 3.15 pytest
Built jiter==0.16.0
Built regex==2026.7.19
Built aiohttp==3.14.3

Installed 134 packages in 6.15s

runs also on windows11 with Vstudio 2026 installed