Remove Python 3.9 support and the legacy retworkx import

.github/workflows/docs_dev.yml

@@ -18,7 +18,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
-        python-version: '3.10'
+        python-version: '3.12'
     - name: Install dependencies
       run: |
         pip install -U --group testinfra

.github/workflows/docs_release.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
-        python-version: '3.10'
+        python-version: '3.12'
     - name: Install dependencies
       run: |
         pip install -U --group testinfra

.github/workflows/main.yml

@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.12"
       - run: |
           pip install -U --group lint
       - uses: dtolnay/rust-toolchain@stable
@@ -38,9 +38,9 @@ jobs:
       - name: Clippy
         run: cargo clippy --workspace --all-targets -- -D warnings
       - name: Black Codestyle Format
-        run: black --check --diff rustworkx tests retworkx
+        run: black --check --diff rustworkx tests
       - name: Python Lint
-        run: ruff check rustworkx setup.py tests retworkx
+        run: ruff check rustworkx setup.py tests
       - name: Check stray release notes
         run: python tools/find_stray_release_notes.py
       - name: rustworkx-core Rust Tests
@@ -61,7 +61,7 @@ jobs:
     strategy:
       matrix:
         rust: [stable]
-        python-version: [3.9, "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
         platform: [
           { os: "macOS-13", python-architecture: "x64", rust-target: "x86_64-apple-darwin" },
           { os: "macOS-14", python-architecture: "arm64", rust-target: "aarch64-apple-darwin" },
@@ -70,20 +70,16 @@ jobs:
           { os: "windows-latest", python-architecture: "x64", rust-target: "x86_64-pc-windows-msvc" },
         ]
         include:
-          # Test ARM + minimal supported Rust version
+          # Test minimal supported Rust version
           - rust: 1.85.1
-            python-version: "3.10"
+            python-version: "3.12"
             platform: { os: "ubuntu-latest", python-architecture: "x64", rust-target: "x86_64-unknown-linux-gnu" }
             msrv: "MSRV"
-          # Test ARM + future versions of Rust and Python
+          # Test future versions of Rust and Python
           - rust: beta
-            python-version: "3.13" # upgrade to 3.14-dev when the release candidate is available
+            python-version: "3.14" # upgrade to 3.15-dev when the release candidate is available
             platform: { os: "ubuntu-latest", python-architecture: "x64", rust-target: "x86_64-unknown-linux-gnu" }
             msrv: "Beta"
-        # Exclude python 3.9 on arm64 until actions/setup-python#808 is resolved
-        exclude:
-          - platform: {os: "macOS-14", python-architecture: "arm64", rust-target: "aarch64-apple-darwin" }
-            python-version: 3.9
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
@@ -112,7 +108,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.9, "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
@@ -137,7 +133,7 @@ jobs:
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.12"
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable
         with:
@@ -185,7 +181,7 @@ jobs:
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.12"
       - name: Install Rust toolchain
         uses: dtolnay/rust-toolchain@stable
       - name: Install binary deps

.github/workflows/wheels.yml

@@ -186,26 +186,3 @@ jobs:
         with:
           path: ./wheelhouse/*.whl
           name: shared-wheel-builds-win32
-  retworkx-compat-build:
-    name: Build retworkx
-    runs-on: ubuntu-latest
-    environment: release
-    permissions:
-      id-token: write
-    needs: ["upload_shared_wheels"]
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-        name: Install Python
-        with:
-          python-version: '3.10'
-      - name: Install deps
-        run: pip install -U setuptools-rust wheel build
-      - name: Build sdist
-        run: pushd retworkx && python setup.py bdist_wheel && popd
-      - uses: actions/upload-artifact@v4
-        with:
-          path: ./retworkx/dist/*
-          name: sdist-retworkx
-      - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1

Cargo.toml

@@ -70,7 +70,7 @@ nalgebra-sparse = { version = "=0.10", features = ["io"] }
 
 [dependencies.pyo3]
 version = "0.26"
-features = ["abi3-py39", "extension-module", "hashbrown", "num-bigint", "num-complex", "indexmap", "py-clone"]
+features = ["abi3-py310", "extension-module", "hashbrown", "num-bigint", "num-complex", "indexmap", "py-clone"]
 
 [dependencies.sprs]
 version = "^0.11"

noxfile.py

@@ -25,7 +25,7 @@ def base_test(session):
 def test(session):
     base_test(session)
 
-@nox.session(python=["3.9", "3.10", "3.11", "3.12"])
+@nox.session(python=["3.10", "3.11", "3.12", "3.13"])
 def test_with_version(session):
     base_test(session)
 
@@ -34,7 +34,7 @@ def lint(session):
     black(session)
     typos(session)
     session.install(*lint_deps)
-    session.run("ruff", "check", "rustworkx", "retworkx", "setup.py")
+    session.run("ruff", "check", "rustworkx", "setup.py")
     session.run("cargo", "fmt", "--all", "--", "--check", external=True)
     session.run("python", "tools/find_stray_release_notes.py")
 
@@ -74,7 +74,7 @@ def docs_clean(session):
 @nox.session(python=["3"])
 def black(session):
     session.install(*[d for d in lint_deps if "black" in d])
-    session.run("black", "rustworkx", "tests", "retworkx", *session.posargs)
+    session.run("black", "rustworkx", "tests", *session.posargs)
 
 @nox.session(python=["3"])
 def typos(session):

pyproject.toml

@@ -2,7 +2,7 @@
 name = "rustworkx"
 version = "0.17.1"
 description = "A High-Performance Graph Library for Python"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 dependencies = [
     "numpy>=1.16.0,<3"
 ]
@@ -13,7 +13,6 @@ classifiers=[
     "Intended Audience :: Science/Research",
     "Programming Language :: Rust",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -29,7 +28,7 @@ packages = ["rustworkx", "rustworkx.visualization"]
 include-package-data = true
 
 [tool.distutils.bdist_wheel]
-py-limited-api = "cp39"
+py-limited-api = "cp310"
 
 [[tool.setuptools-rust.ext-modules]]
 target = "rustworkx.rustworkx"
@@ -105,7 +104,7 @@ releaseinfra = [
 
 [tool.black]
 line-length = 100
-target-version = ['py39', 'py310', 'py311', 'py312', 'py313']
+target-version = ['py310', 'py311', 'py312', 'py313']
 
 [tool.ruff]
 line-length = 105 # more lenient than black due to long function signatures
@@ -117,7 +116,7 @@ lint.select = [
     "PYI", # flake8-pyi
     "Q",   # flake8-quotes
 ]
-target-version = "py39"
+target-version = "py310"
 extend-exclude = ["doc"]
 
 [tool.ruff.lint.per-file-ignores]

releasenotes/notes/py39-unsupported-d41f902e327dffad.yaml

@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    The minimum supported Python version for using rustworkx has been raised to Python 3.10.
+    Python 3.9 has reached it's end-of-life and will no longer be supported. To use rustworkx
+    you will need to ensure you are using Python >=3.10.

releasenotes/notes/retworkx-eol-bcbf18d805a73aed.yaml

@@ -0,0 +1,7 @@
+---
+upgrade:
+  - |
+    As announced in the 0.17 release, the legacy `retworkx` name has been sunset. We encourage users to depend on
+    'rustworkx' as previously instructed.
+
+    Thanks to all users that have used the library since the early days before the name change!