[BUG] pipx install modular fails

[gonsolo]

Bug description

Actual behavior

pipx install modular fails because sentencepiece fails:

      Package 'sentencepiece' not found
      ^[[31mCMake Error at CMakeLists.txt:15 (cmake_minimum_required):

They should fix their issues:
google/sentencepiece#1113
The reasons are basically GCC 15 and CMake 4.

Expected behavior

pipx install modular works.

Steps to reproduce

pipx install modular on Arch Linux with GCC 15 and CMake 4.

System information

Latest Arch.

[Ahajha]

Yea this is kinda nasty. Unfortunately nothing we can do about it, but I'll leave it open in the meantime.

[gonsolo]

Unfortunately nothing we can do about it

Nudge them. :)

[Ahajha]

Fair :) Though I'm not confident on their response time given the low amount of recent activity. I guess we'll see.

[gonsolo]

I worked around this by manually installing sentencepiece and gguf in a venv, then installed modular, then let pipx know about this.

[Ahajha]

Good to know, thanks!

[zbowling]

This is also likely because in your config you are on a platform or python version where you were not able to download a binary wheel version of sentencepeice. If you are using python 3.13 they don't have python 3.13 builds published yet, forcing pip to download the sdist compile locally. Using python 3.12 it might work.

[Ahajha]

I'm pretty sure they don't have 3.13 wheels at all, the last release they had was over a year ago so 3.13 wasn't even released yet.

[gonsolo]

forcing pip to download the sdist compile locally

And the compilation fails because of two reasons:

1. The CMake version 3.1 doesn't work with CMake 4.0 anymore.
2. A missing cstdint doesn't compile with GCC 15.

They already fixed 1. but didn't release a version, the fix for number 2. is a one-liner. :(

[gonsolo]

Fair :) Though I'm not confident on their response time given the low amount of recent activity. I guess we'll see.

Another possibility is to get rid of the gguf and sentencepiece dependency.

[SvenRohrTNG]

This works for me:

uv init --python 3.12 myproject
cd myproject
uv add modular