Handle case with gemma4 without safetensors index (#3457) #4

	name: PyO3-CI

	on:
	workflow_dispatch:
	push:
	branches:
	- main
	paths:
	- candle-pyo3/**
	pull_request:
	paths:
	- candle-pyo3/**

	jobs:
	build_and_test:
	name: Check everything builds & tests
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest] # For now, only test on Linux
	steps:
	- name: Checkout repository
	uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

	- name: Install Rust
	uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable

	- name: Install Python
	uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
	with:
	python-version: 3.13
	architecture: "x64"

	- name: Cache Cargo Registry
	uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
	with:
	path: ~/.cargo/registry
	key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}

	- name: Install Protoc
	uses: arduino/setup-protoc@a8b67ba40b37d35169e222f3bb352603327985b6 # v2
	with:
	version: "25.0"
	repo-token: ${{ secrets.GITHUB_TOKEN }}

	- name: Install
	working-directory: ./candle-pyo3
	run: \|
	python -m venv .env
	source .env/bin/activate
	pip install -U pip
	pip install pytest maturin black
	python -m maturin develop -r --features onnx

	- name: Check style
	working-directory: ./candle-pyo3
	run: \|
	source .env/bin/activate
	python stub.py --check
	black --check .

	- name: Run tests
	working-directory: ./candle-pyo3
	run: \|
	source .env/bin/activate
	python -m pytest -s -v tests

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