Modernize project setup using uv

Migrate to uv
Apply Python linting

Author: Viicos

.github/actions/build-pgo-wheel/action.yml

@@ -34,20 +34,15 @@ runs:
       env:
         RUSTFLAGS: '-Cprofile-generate=${{ github.workspace }}/profdata'
 
-    - name: detect rust host
-      run: echo RUST_HOST=$(rustc -Vv | grep host | cut -d ' ' -f 2) >> "$GITHUB_ENV"
-      shell: bash
-
     - name: generate pgo data
       run: |
-        python -m pip install -U pip
-        python -m pip install -r tests/requirements.txt
-        python -m pip install jiter --no-index --no-deps --find-links pgo-wheel --force-reinstall
-        python bench.py jiter jiter-cache
-        RUST_HOST=$(rustc -Vv | grep host | cut -d ' ' -f 2)
+        export RUST_HOST=$(rustc --print host-tuple)
+        uv sync --group dev --no-install-package jiter
+        cd crates/jiter-python
+        uv pip install jiter --no-index --no-deps --find-links pgo-wheel --force-reinstall
+        uv run bench.py jiter jiter-cache
         rustup run ${{ inputs.rust-toolchain }} bash -c 'echo LLVM_PROFDATA=$RUSTUP_HOME/toolchains/$RUSTUP_TOOLCHAIN/lib/rustlib/$RUST_HOST/bin/llvm-profdata >> "$GITHUB_ENV"'
       shell: bash
-      working-directory: crates/jiter-python
 
     - name: merge pgo data
       run: ${{ env.LLVM_PROFDATA }} merge -o ${{ github.workspace }}/merged.profdata ${{ github.workspace }}/profdata

.github/workflows/ci.yml

@@ -94,7 +94,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.13", "3.13t", "graalpy-25.0"]
+        python-version: ["3.13", "3.13t", "graalpy3.12"]
 
     env:
       RUNS_ON: ubuntu-latest
@@ -103,28 +103,25 @@ jobs:
       - uses: actions/checkout@v5
 
       - name: set up python ${{ matrix.python-version }}
-        uses: actions/setup-python@v6
+        uses: astral-sh/setup-uv@v8.0.0
         with:
           python-version: ${{ matrix.python-version }}
 
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - uses: taiki-e/install-action@cargo-llvm-cov
 
-      - name: Install python dependencies
-        run: pip install -r crates/jiter-python/tests/requirements.txt
-
-      - name: Build jiter-python
+      - name: Install dependencies
         run: |
           source <(cargo llvm-cov show-env --export-prefix)
           cargo llvm-cov clean --workspace --profraw-only
-          pip install -e crates/jiter-python --config-settings=build-args='--profile dev'
+          uv sync --group dev --all-packages
 
       - name: Run tests
         run: |
           source <(cargo llvm-cov show-env --export-prefix)
-          pytest crates/jiter-python/tests
-          python crates/jiter-python/bench.py jiter jiter-cache --fast
+          uv run pytest crates/jiter-python/tests
+          uv run crates/jiter-python/bench.py jiter jiter-cache --fast
         env:
           RUST_BACKTRACE: 1
 
@@ -143,7 +140,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - uses: actions/setup-python@v6
+      - uses: astral-sh/setup-uv@v8.0.0
         with:
           python-version: "3.13"
 
@@ -153,7 +150,7 @@ jobs:
           cache-target: release
           bins: cargo-codspeed
 
-      - run: python crates/jiter/benches/generate_big.py
+      - run: uv run crates/jiter/benches/generate_big.py
 
       - run: cargo codspeed build -F python -p jiter
 
@@ -180,7 +177,7 @@ jobs:
       - if: steps.cache-rust.outputs.cache-hit != 'true'
         run: cargo install cargo-fuzz
       - run: |
-          # cargo fuzz defaults to musl targets, which is seeming incomatible with sanitizers according to CI failures
+          # cargo fuzz defaults to musl targets, which is seemingly incompatible with sanitizers according to CI failures
           RUST_TARGET=$(rustc -Vv | grep host | cut -d ' ' -f 2)
           cargo fuzz run --target=$RUST_TARGET --fuzz-dir crates/fuzz compare_to_serde --release -- -max_total_time=300s
 
@@ -200,7 +197,7 @@ jobs:
         run: cargo install cargo-fuzz
 
       - run: |
-          # cargo fuzz defaults to musl targets, which is seeming incomatible with sanitizers according to CI failures
+          # cargo fuzz defaults to musl targets, which is seemingly incompatible with sanitizers according to CI failures
           RUST_TARGET=$(rustc -Vv | grep host | cut -d ' ' -f 2)
           cargo fuzz run --target=$RUST_TARGET --fuzz-dir crates/fuzz compare_skip --release -- -max_total_time=300s
 
@@ -209,11 +206,13 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - name: set up python
-        uses: actions/setup-python@v6
+      - uses: astral-sh/setup-uv@v8.0.0
         with:
           python-version: "3.13"
 
+      - name: Install dependencies
+        run: uv sync --all-packages --group linting
+
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt,clippy
@@ -380,12 +379,11 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - id: setup-python
-        name: set up python
-        uses: actions/setup-python@v6
+      - name: set up python
+        id: setup-python
+        uses: astral-sh/setup-uv@v8.0.0
         with:
           python-version: ${{ matrix.interpreter }}
-          allow-prereleases: true
 
       - name: install rust stable
         id: rust-toolchain
@@ -413,11 +411,11 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - id: setup-python
-        name: set up python
-        uses: actions/setup-python@v6
+      - name: set up python
+        id: setup-python
+        uses: astral-sh/setup-uv@v8.0.0
         with:
-          python-version: 3.12
+          python-version: '3.12'
 
       - name: install rust nightly
         uses: dtolnay/rust-toolchain@master
@@ -439,10 +437,10 @@ jobs:
           actions-cache-folder: emsdk-cache
 
       - name: install deps
-        run: pip install --upgrade pip maturin
+        run: uv sync --group dev --all-packages
 
       - name: build wheels
-        run: maturin build --release --target wasm32-unknown-emscripten --out dist -i 3.12
+        run: uv run maturin build --release --target wasm32-unknown-emscripten --out dist -i 3.12
         working-directory: crates/jiter-python
 
       - uses: actions/setup-node@v4
@@ -529,24 +527,23 @@ jobs:
           install: |
             set -x
             if command -v apt-get &> /dev/null; then
-              echo "installing python & pip with apt-get..."
+              echo "installing python, pip and curl with apt-get..."
               apt-get update
-              apt-get install -y --no-install-recommends python3 python3-pip python3-venv git
+              apt-get install -y --no-install-recommends python3 python3-pip python3-venv git curl
             else
-              echo "installing python & pip with apk..."
+              echo "installing python, pip and curl with apk..."
               apk update
-              apk add python3 py3-pip git
+              apk add python3 py3-pip git curl
             fi
           run: |
-            cd crates/jiter-python
             set -x
-            # typing-extensions isn't automatically installed because of `--no-index --no-deps`
-            python3 -m venv venv
-            source venv/bin/activate
-            python3 -m pip install --upgrade pip -r tests/requirements.txt
-            python3 -m pip install jiter --no-index --no-deps --find-links dist --force-reinstall
-            python3 -m pytest
-            python3 -c 'import jiter; print(jiter.__version__)'
+            curl -LsSf https://astral.sh/uv/install.sh | sh
+            source $HOME/.local/bin/env  # So that uv can be found once installed
+            uv sync --group dev --no-install-package jiter
+            cd crates/jiter-python
+            uv pip install jiter --no-index --no-deps --find-links dist --force-reinstall
+            uv run pytest
+            uv run python -c 'import jiter; print(jiter.__version__)'
 
   test-builds-os:
     name: test build on ${{ matrix.os }}
@@ -562,7 +559,8 @@ jobs:
       - uses: actions/checkout@v5
 
       - name: set up python
-        uses: actions/setup-python@v6
+        id: setup-python
+        uses: astral-sh/setup-uv@v8.0.0
         with:
           python-version: "3.13"
 
@@ -575,11 +573,11 @@ jobs:
 
       - name: run tests
         run: |
-          python3 -m pip install --upgrade pip -r tests/requirements.txt
-          python3 -m pip install jiter --no-index --no-deps --find-links dist --force-reinstall
-          python3 -m pytest
-          python3 -c 'import jiter; print(jiter.__version__)'
-        working-directory: crates/jiter-python
+          uv sync --group dev --no-install-package jiter
+          uv pip install jiter --no-index --no-deps --find-links dist --force-reinstall
+          cd crates/jiter-python
+          uv run pytest
+          uv run python -c 'import jiter; print(jiter.__version__)'
 
   # https://github.com/marketplace/actions/alls-green#why used for branch protection checks
   check:

.pre-commit-config.yaml

@@ -25,6 +25,12 @@ repos:
     types: [rust]
     language: system
     pass_filenames: false
+  - id: lint-python
+    name: Lint python
+    entry: make lint-python
+    types: [python]
+    language: system
+    pass_filenames: false
   - id: check-without-num-bigint
     name: Check without num-bigint feature
     entry: cargo check --no-default-features --package jiter

Makefile

@@ -1,4 +1,10 @@
 .DEFAULT_GOAL := all
+python_sources = crates/jiter/benches/generate_big.py crates/jiter-python/bench.py crates/jiter-python/jiter.pyi crates/jiter-python/tests/test_jiter.py
+
+
+.PHONY: .uv
+.uv:
+	@uv -V || echo 'Please install uv: https://docs.astral.sh/uv/getting-started/installation/'
 
 .PHONY: format
 format:
@@ -11,30 +17,34 @@ lint:
 	cargo clippy -- -D warnings
 	cargo doc
 
+.PHONY: lint-python
+lint-python: .uv
+	uv run ruff check $(python_sources)
+	uv run ruff format --check $(python_sources)
+
 .PHONY: test
 test:
 	cargo test
 
 .PHONY: python-install
 python-install:
-	pip install -U maturin ujson orjson
-	pip install -r crates/jiter-python/tests/requirements.txt
+	uv sync --all-groups --all-packages
 
 .PHONY: python-dev
 python-dev:
 	maturin develop -m crates/jiter-python/Cargo.toml
 
 .PHONY: python-test
 python-test: python-dev
-	pytest crates/jiter-python/tests
+	uv run pytest crates/jiter-python/tests
 
 .PHONY: python-dev-release
 python-dev-release:
 	maturin develop -m crates/jiter-python/Cargo.toml --release
 
 .PHONY: python-bench
 python-bench: python-dev-release
-	python crates/jiter-python/bench.py
+	uv run python crates/jiter-python/bench.py
 
 .PHONY: bench
 bench:

crates/jiter-python/README.md

@@ -15,10 +15,10 @@ def from_json(
     /,
     *,
     allow_inf_nan: bool = True,
-    cache_mode: Literal[True, False, "all", "keys", "none"] = "all",
-    partial_mode: Literal[True, False, "off", "on", "trailing-strings"] = False,
+    cache_mode: Literal[True, False, 'all', 'keys', 'none'] = 'all',
+    partial_mode: Literal[True, False, 'off', 'on', 'trailing-strings'] = False,
     catch_duplicate_keys: bool = False,
-    float_mode: Literal["float", "decimal", "lossless-float"] = "float",
+    float_mode: Literal['float', 'decimal', 'lossless-float'] = 'float',
 ) -> Any:
     """
     Parse input bytes into a JSON object.
@@ -42,18 +42,21 @@ def from_json(
         Python object built from the JSON input.
     """
 
+
 def cache_clear() -> None:
     """
     Reset the string cache.
     """
 
+
 def cache_usage() -> int:
     """
     get the size of the string cache.
 
     Returns:
         Size of the string cache in bytes.
     """
+
 ```
 ## Examples
 
@@ -80,7 +83,7 @@ partial_json = b'{"name": "John", "age": 30, "city": "New Yor'
 try:
     jiter.from_json(partial_json, partial_mode=False)
 except ValueError as e:
-    print(f"Error: {e}")
+    print(f'Error: {e}')
 
 # Parse incomplete JSON, discarding incomplete last field
 result = jiter.from_json(partial_json, partial_mode=True)
@@ -108,5 +111,5 @@ print(result)  # Output: {'foo': 2}
 try:
     jiter.from_json(json_with_dupes, catch_duplicate_keys=True)
 except ValueError as e:
-    print(f"Error: {e}")
+    print(f'Error: {e}')
 ```