Installer selects incompatible "linux_aarch64" wheel on Android (Termux)

[speedyk-005]

Firstly , thnks for such work

The install script currently detects architecture ("aarch64") and selects a "linux_aarch64" wheel, but this is incompatible with Android environments (e.g. Termux), which use bionic libc instead of glibc.

As a result, the installation fails even though Python version and architecture match.

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Steps to Reproduce

1. Run:

  curl -sL https://raw.githubusercontent.com/Eutalix/android-pydantic-core/main/install_pydantic_core.sh | bash

or

pip install pydantic_core-*.whl

2. Environment:

   • Android (Termux)
   • Python 3.13 (cp313)
   • Architecture: aarch64

---

Observed Behavior

The script selects:

pydantic_core-2.45.0-cp313-cp313-linux_aarch64.whl

Installation fails with:

[/s/e/0] ➤ curl -sL https://raw.githubusercontent.com/Eutalix/android-pydantic-core/main/install_pydantic_core.sh | bash
>>> Android Pydantic-Core Installer <<<
[1/4] Checking Python environment...
   - Python: 3.13 (cp313)
[2/4] Detecting architecture...
   - Arch: aarch64 -> Wheels matching: linux_aarch64
[3/4] Finding latest compatible wheel...
   - Querying GitHub API...
   - Found: pydantic_core-2.45.0-cp313-cp313-linux_aarch64.whl
[4/4] Downloading and installing...
   - Downloading...
#=#=#                                             ##O#-#                                            ##O=#  #                                          #=#=-#  #                                         -#O#- #   #                                       ##                                                #######                                           #########                                         ############                                      ###############                                   ###########
...
######### 100.0%

Installing wheel...
ERROR: pydantic_core-2.45.0-cp313-cp313-linux_aarch64.whl is not a supported wheel on this platform.
❌ Pip install filed. 

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Expected Behavior

• The installer should:
  • Detect Android (bionic libc) vs standard Linux (glibc)
  • Either:
    • Provide a compatible Android wheel, OR
    • Fall back to building from source, OR
    • Abort early with a clear message

---

Root Cause

The script assumes:

• "aarch64" + "linux" = compatible wheel

But:

• Android uses bionic libc, not glibc
• Wheels tagged "linux_aarch64" are not compatible with Android

---

Suggested Fixes

• Improve platform detection:

  • Detect Android via:
    uname -o
    or checking for "android"/"termux" in environment

• Adjust wheel selection logic:

  • Avoid selecting "linux_*" wheels on Android
  • Provide Android-specific builds if available

• Add fallback:

  • Attempt source build if no compatible wheel is found

• Improve error messaging:

  • Explain ABI mismatch instead of letting pip fail cryptically

---

Additional Notes

This issue is more visible on Python 3.13, where compatible wheels are already limited.