Trouble with a packaging tutorial

[rostisLAW-os]

OS version

Termux

Python version

Python 3.12.10

Pip version

pip 25.1.1

Guide link

No response

Problem description

hi everybody. when installing aiogram on my termux, an error appears in my terminal and I cannot install it. the error occurs when it starts to install pydantic-core.tar.gz. I left the error code at the bottom.

Error message

~ $ pip install aiogram                 Collecting aiogram
  Using cached aiogram-3.20.0.post0-py3-none-any.whl.metadata (7.6 kB)
Collecting aiofiles<24.2,>=23.2.1 (from aiogram)
  Using cached aiofiles-24.1.0-py3-none-any.whl.metadata (10 kB)
Collecting aiohttp<3.12,>=3.9.0 (from aiogram)
  Using cached aiohttp-3.11.18.tar.gz (7.7 MB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Collecting certifi>=2023.7.22 (from aiogram)
  Using cached certifi-2025.4.26-py3-none-any.whl.metadata (2.5 kB)
Collecting magic-filter<1.1,>=1.0.12 (from aiogram)
  Using cached magic_filter-1.0.12-py3-none-any.whl.metadata (1.5 kB)
Collecting pydantic<2.12,>=2.4.1 (from aiogram)
  Using cached pydantic-2.11.5-py3-none-any.whl.metadata (67 kB)
Collecting typing-extensions<=5.0,>=4.7.0 (from aiogram)
  Using cached typing_extensions-4.14.0-py3-none-any.whl.metadata (3.0 kB)
Collecting aiohappyeyeballs>=2.3.0 (from aiohttp<3.12,>=3.9.0->aiogram)
  Using cached aiohappyeyeballs-2.6.1-py3-none-any.whl.metadata (5.9 kB)
Collecting aiosignal>=1.1.2 (from aiohttp<3.12,>=3.9.0->aiogram)
  Using cached aiosignal-1.3.2-py2.py3-none-any.whl.metadata (3.8 kB)
Collecting attrs>=17.3.0 (from aiohttp<3.12,>=3.9.0->aiogram)
  Using cached attrs-25.3.0-py3-none-any.whl.metadata (10 kB)
Collecting frozenlist>=1.1.1 (from aiohttp<3.12,>=3.9.0->aiogram)
  Using cached frozenlist-1.6.2-py3-none-any.whl.metadata (17 kB)
Collecting multidict<7.0,>=4.5 (from aiohttp<3.12,>=3.9.0->aiogram)
  Using cached multidict-6.4.4-py3-none-any.whl.metadata (5.3 kB)
Collecting propcache>=0.2.0 (from aiohttp<3.12,>=3.9.0->aiogram)
  Using cached propcache-0.3.1-py3-none-any.whl.metadata (10 kB)
Collecting yarl<2.0,>=1.17.0 (from aiohttp<3.12,>=3.9.0->aiogram)
  Using cached yarl-1.20.0-py3-none-any.whl.metadata (72 kB)
Collecting annotated-types>=0.6.0 (from pydantic<2.12,>=2.4.1->aiogram)
  Using cached annotated_types-0.7.0-py3-none-any.whl.metadata (15 kB)
Collecting pydantic-core==2.33.2 (from pydantic<2.12,>=2.4.1->aiogram)
  Using cached pydantic_core-2.33.2.tar.gz (435 kB)
  Installing build dependencies ... error
  error: subprocess-exited-with-error

  × pip subprocess to install build dependencies did not run successfully.
  │ exit code: 1
  ╰─> [28 lines of output]
      Collecting maturin<2,>=1
        Using cached maturin-1.8.6.tar.gz (203 kB)
        Installing build dependencies: started
        Installing build dependencies: finished with status 'done'
        Getting requirements to build wheel: started
        Getting requirements to build wheel: finished with status 'done'
        Installing backend dependencies: started
        Installing backend dependencies: finished with status 'done'
        Preparing metadata (pyproject.toml): started
        Preparing metadata (pyproject.toml): finished with status 'error'
        error: subprocess-exited-with-error

        × Preparing metadata (pyproject.toml) did not run successfully.
        │ exit code: 1
        ╰─> [3 lines of output]
            Python reports SOABI: cpython-312
            Unsupported platform: 312
            Rust not found, installing into a temporary directory
            [end of output]

        note: This error originates from a subprocess, and is likely not a problem with pip.
      error: metadata-generation-failed

      × Encountered error while generating package metadata.
      ╰─> See above for output.

      note: This is an issue with the package mentioned above, not pip.
      hint: See above for details.
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× pip subprocess to install build dependencies did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.

[woodruffw]

@rostisLAW-os could you say a bit more about the platform you're running on?

The error you're seeing is coming from the fact that pydantic_core-2.33.2.tar.gz is a source distribution containing Rust code, which means that it needs a functional local Rust compiler to install correctly.

For most users this isn't an issue, since most users would install a compatible wheel instead (and skip the compiler dependency). However in your case pip selected the source distribution, which suggests that you're running on a platform that pydantic_core hasn't provided a wheel for.

The other possibility is that your pip has been configured somehow to avoid wheels, although this seems unlikely since it looks like other dependencies are being pulled from wheels.

[merwok]

From this page: https://docs.python.org/3/using/android.html
I gather that termux is a console for android, but it may support installing only pure-python packages.

Unless I’m mistaken, CPython does not support android officially (or not tier 1), and there is no platform definition and wheel tag for projects to use. So this issue may not be actionable.

[henryiii]

Android support is coming to cibuildwheel (pypa/cibuildwheel#2349), but hasn't landed yet; should be in 3.1. Many Rust packages use https://github.com/PyO3/maturin-action instead of cibuildwheel, but not sure if Android (or iOS or WebAssembly) support is planned there.

You can probably try to download an older version of Pydantic (<2, IIRC) before the Rust rewrite; if the old version works for you, that might be an option.

What platform does it report, by the way? (for example, what does python3 -m platform show?)

[mhsmith]

CPython does not support android officially (or not tier 1), and there is no platform definition and wheel tag for projects to use.

Starting in Python 3.13 it's officially supported as tier 3, so it does have a platform definition and wheel tag.

I gather that termux is a console for android, but it may support installing only pure-python packages.

It only supports installing pure-Python wheels (though that might change as official Android wheels start to appear on PyPI). However, Termux is often able to compile non-pure packages from source, as long as the necessary compilers are available. In this case, that means you'd need to install a Rust compiler.

[sinoroc]

Out of curiosity, @rostisLAW-os could you run python -m pip debug --verbose in your Termux and post the output here so that we can see which wheel tags are supported?

[rostisLAW-os]

Out of curiosity, @rostisLAW-os could you run python -m pip debug --verbose in your Termux and post the output here so that we can see which wheel tags are supported?

it's been a week now, I've Googled a lot of such queries, it seems like I've installed rust and now on installing build dependencies I just have him hanging on to it.

[rostisLAW-os]

Android support is coming to cibuildwheel (pypa/cibuildwheel#2349), but hasn't landed yet; should be in 3.1. Many Rust packages use https://github.com/PyO3/maturin-action instead of cibuildwheel, but not sure if Android (or iOS or WebAssembly) support is planned there.

You can probably try to download an older version of Pydantic (<2, IIRC) before the Rust rewrite; if the old version works for you, that might be an option.

What platform does it report, by the way? (for example, what does python3 -m platform show?)

Linux-5.4.86-qgki-gd35c14abf617-dirty-aarch64-with-libc