[model-gateway] move python to binding folder (#13295)

.github/workflows/nightly-release-router.yml

@@ -66,16 +66,16 @@ jobs:
       - name: Modify version for nightly release
         run: |
           # Get current version from pyproject.toml
-          CURRENT_VERSION=$(python -c "import tomllib; print(tomllib.load(open('pyproject.toml', 'rb'))['project']['version'])" 2>/dev/null || python -c "import tomli; print(tomli.load(open('pyproject.toml', 'rb'))['project']['version'])")
+          CURRENT_VERSION=$(python -c "import tomllib; print(tomllib.load(open('bindings/python/pyproject.toml', 'rb'))['project']['version'])" 2>/dev/null || python -c "import tomli; print(tomli.load(open('bindings/python/pyproject.toml', 'rb'))['project']['version'])")
           # Create nightly version with date: e.g., 0.2.1.dev20250128
           NIGHTLY_VERSION="${CURRENT_VERSION}.dev$(date +%Y%m%d)"
           echo "Nightly version: $NIGHTLY_VERSION"
 
           # Update pyproject.toml with nightly version (temporary, not committed)
-          sed -i.bak "s/version = \"${CURRENT_VERSION}\"/version = \"${NIGHTLY_VERSION}\"/" pyproject.toml
+          sed -i.bak "s/version = \"${CURRENT_VERSION}\"/version = \"${NIGHTLY_VERSION}\"/" bindings/python/pyproject.toml
 
           # Verify the change
-          cat pyproject.toml | grep "^version"
+          cat bindings/python/pyproject.toml | grep "^version"
         shell: bash
 
       - name: Install twine and tomli
@@ -92,6 +92,7 @@ jobs:
       - name: Build wheels
         uses: PyO3/maturin-action@v1
         with:
+          working-directory: bindings/python
           target: ${{ matrix.target }}
           manylinux: ${{ matrix.manylinux || 'auto' }}
           args: --release --out dist --features vendored-openssl --interpreter ${{ matrix.interpreter || '3.9 3.10 3.11 3.12 3.13 3.14' }}
@@ -151,20 +152,21 @@ jobs:
       - name: Modify version for nightly release
         run: |
           # Get current version from pyproject.toml
-          CURRENT_VERSION=$(python -c "import tomllib; print(tomllib.load(open('pyproject.toml', 'rb'))['project']['version'])" 2>/dev/null || python -c "import tomli; print(tomli.load(open('pyproject.toml', 'rb'))['project']['version'])")
+          CURRENT_VERSION=$(python -c "import tomllib; print(tomllib.load(open('bindings/python/pyproject.toml', 'rb'))['project']['version'])" 2>/dev/null || python -c "import tomli; print(tomli.load(open('bindings/python/pyproject.toml', 'rb'))['project']['version'])")
           # Create nightly version with date: e.g., 0.2.1.dev20250128
           NIGHTLY_VERSION="${CURRENT_VERSION}.dev$(date +%Y%m%d)"
           echo "Nightly version: $NIGHTLY_VERSION"
 
           # Update pyproject.toml with nightly version (temporary, not committed)
-          sed -i "s/version = \"${CURRENT_VERSION}\"/version = \"${NIGHTLY_VERSION}\"/" pyproject.toml
+          sed -i "s/version = \"${CURRENT_VERSION}\"/version = \"${NIGHTLY_VERSION}\"/" bindings/python/pyproject.toml
 
           # Verify the change
-          cat pyproject.toml | grep "^version"
+          cat bindings/python/pyproject.toml | grep "^version"
 
       - name: Build SDist
         uses: PyO3/maturin-action@v1
         with:
+          working-directory: bindings/python
           command: sdist
           args: --out dist
           rust-toolchain: stable

.github/workflows/pr-test-pd-router.yml

@@ -147,7 +147,7 @@ jobs:
       run: |
         source "$HOME/.cargo/env"
         echo "Building sgl-router..."
-        cd sgl-router
+        cd sgl-router/bindings/python
         pip install maturin
         maturin build --release --out dist --features vendored-openssl
         pip install --force-reinstall dist/*.whl

.github/workflows/pr-test-rust.yml

@@ -57,16 +57,17 @@ jobs:
       - name: Test maturin build
         uses: PyO3/maturin-action@v1
         with:
+          working-directory: bindings/python
           args: --release --out dist --features vendored-openssl
           rust-toolchain: stable
           sccache: true
 
       - name: List built wheel
-        run: ls -lh dist/
+        run: ls -lh bindings/python/dist/
 
       - name: Test wheel install
         run: |
-          pip install dist/*.whl
+          pip install bindings/python/dist/*.whl
           python -c "import sglang_router; print('Python package: OK')"
           python -c "from sglang_router.sglang_router_rs import Router; print('Rust extension: OK')"
           python -m sglang_router.launch_router --help > /dev/null && echo "Entry point: OK"
@@ -165,18 +166,18 @@ jobs:
         run: |
           source "$HOME/.cargo/env"
           export RUSTC_WRAPPER=sccache
-          cd sgl-router
+          cd sgl-router/bindings/python
           python3 -m pip install --upgrade pip maturin
           pip uninstall -y sglang-router
-          maturin build --profile ci --features vendored-openssl
-          pip install target/wheels/*.whl
+          maturin build --profile ci --features vendored-openssl --out dist
+          pip install dist/*.whl
 
       - name: Run Python unit tests
         run: |
           cd sgl-router
           source "$HOME/.cargo/env"
           python3 -m pip install pytest pytest-cov pytest-xdist
-          pytest -q py_test/unit --cov=sglang_router --cov-report=term-missing --cov-fail-under=80
+          pytest -q py_test/unit --cov=sglang_router --cov-config=bindings/python/.coveragerc --cov-report=term-missing --cov-fail-under=80
 
       - name: Run Python integration tests
         run: |
@@ -274,11 +275,11 @@ jobs:
         run: |
           source "$HOME/.cargo/env"
           export RUSTC_WRAPPER=sccache
-          cd sgl-router
+          cd sgl-router/bindings/python
           python3 -m pip install --upgrade pip maturin
           pip uninstall -y sglang-router
-          maturin build --profile ci --features vendored-openssl
-          pip install target/wheels/*.whl
+          maturin build --profile ci --features vendored-openssl --out dist
+          pip install dist/*.whl
 
       - name: Run Python E2E response API tests
         run: |

.github/workflows/release-docker-router.yml

@@ -4,7 +4,7 @@ on:
     branches:
       - main
     paths:
-      - "sgl-router/py_src/sglang_router/version.py"
+      - "sgl-router/bindings/python/sglang_router/version.py"
   workflow_dispatch:
 
 jobs:
@@ -23,7 +23,7 @@ jobs:
 
       - name: Build and Push
         run: |
-          version=$(cat sgl-router/py_src/sglang_router/version.py | cut -d'"' -f2)
+          version=$(cat sgl-router/bindings/python/sglang_router/version.py | cut -d'"' -f2)
           tag=v${version}
 
           docker build . -f docker/router.Dockerfile -t lmsysorg/sglang-router:${tag} --no-cache

.github/workflows/release-pypi-router.yml

@@ -5,7 +5,7 @@ on:
     branches:
       - main
     paths:
-      - sgl-router/pyproject.toml
+      - sgl-router/bindings/python/pyproject.toml
   workflow_dispatch:
 
 jobs:
@@ -77,6 +77,7 @@ jobs:
       - name: Build wheels
         uses: PyO3/maturin-action@v1
         with:
+          working-directory: bindings/python
           target: ${{ matrix.target }}
           manylinux: ${{ matrix.manylinux || 'auto' }}
           args: --release --out dist --features vendored-openssl --interpreter ${{ matrix.interpreter || '3.9 3.10 3.11 3.12 3.13 3.14' }}
@@ -136,6 +137,7 @@ jobs:
       - name: Build SDist
         uses: PyO3/maturin-action@v1
         with:
+          working-directory: bindings/python
           command: sdist
           args: --out dist
           rust-toolchain: stable