Add python 3.9 support

.github/workflows/ci.yml

@@ -46,6 +46,8 @@ jobs:
       matrix:
         include:
           # Linux x86_64 — full Python coverage
+          - os: ubuntu-latest
+            python-version: "3.9"
           - os: ubuntu-latest
             python-version: "3.10"
           - os: ubuntu-latest
@@ -56,17 +58,17 @@ jobs:
             python-version: "3.13"
           # Linux arm64 — boundary versions
           - os: ubuntu-24.04-arm
-            python-version: "3.10"
+            python-version: "3.9"
           - os: ubuntu-24.04-arm
             python-version: "3.13"
           # macOS arm64 — boundary versions
           - os: macos-latest
-            python-version: "3.10"
+            python-version: "3.9"
           - os: macos-latest
             python-version: "3.13"
           # Windows x86_64 — boundary versions
           - os: windows-latest
-            python-version: "3.10"
+            python-version: "3.9"
           - os: windows-latest
             python-version: "3.13"
     runs-on: ${{ matrix.os }}

.github/workflows/publish.yml

@@ -10,7 +10,7 @@ permissions:
 env:
   # Strip leading 'v' if present (v0.2.0 → 0.2.0)
   RAW_VERSION: ${{ github.event.release.tag_name }}
-  PYTHON_VERSIONS: "3.10 3.11 3.12 3.13"
+  PYTHON_VERSIONS: "3.9 3.10 3.11 3.12 3.13"
 
 jobs:
   build-linux:
@@ -31,7 +31,7 @@ jobs:
         uses: PyO3/maturin-action@v1
         with:
           target: ${{ matrix.target }}
-          args: --release --out dist -i python3.10 python3.11 python3.12 python3.13
+          args: --release --out dist -i python3.9 python3.10 python3.11 python3.12 python3.13
           manylinux: auto
       - uses: actions/upload-artifact@v4
         with:
@@ -48,6 +48,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: |
+            3.9
             3.10
             3.11
             3.12
@@ -60,7 +61,7 @@ jobs:
         uses: PyO3/maturin-action@v1
         with:
           target: ${{ matrix.target }}
-          args: --release --out dist -i python3.10 python3.11 python3.12 python3.13
+          args: --release --out dist -i python3.9 python3.10 python3.11 python3.12 python3.13
       - uses: actions/upload-artifact@v4
         with:
           name: wheels-macos-${{ matrix.target }}
@@ -73,6 +74,7 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: |
+            3.9
             3.10
             3.11
             3.12
@@ -86,7 +88,7 @@ jobs:
         uses: PyO3/maturin-action@v1
         with:
           target: x86_64
-          args: --release --out dist -i python3.10 python3.11 python3.12 python3.13
+          args: --release --out dist -i python3.9 python3.10 python3.11 python3.12 python3.13
       - uses: actions/upload-artifact@v4
         with:
           name: wheels-windows-x86_64

Makefile

@@ -3,7 +3,7 @@
 # Optional: specify Python version, e.g. make build PYTHON=3.14
 PYTHON ?=
 UV_PYTHON := $(if $(PYTHON),--python $(PYTHON),)
-SUPPORTED_PYTHONS ?= 3.10 3.11 3.12 3.13 3.14
+SUPPORTED_PYTHONS ?= 3.9 3.10 3.11 3.12 3.13 3.14
 
 help: ## Show this help
 	@awk 'BEGIN {FS = ":.*##"} /^[a-zA-Z_-]+:.*##/ {printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST)

pyproject.toml

@@ -8,13 +8,14 @@ dynamic = ["version"]
 description = "Thread-safe Python caching decorator backed by a Rust extension"
 readme = "README.md"
 license = "MIT"
-requires-python = ">=3.10"
+requires-python = ">=3.9"
 keywords = ["cache", "lru", "ttl", "thread-safe", "rust"]
 classifiers = [
     "Development Status :: 4 - Beta",
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -33,7 +34,7 @@ dev = [
     "cachetools>=6.2.6",
     "cachebox>=4.0",
     "moka-py>=0.3",
-    "zoocache>=0.1",
+    "zoocache>=0.1; python_version >= '3.10'",
     "ty>=0.0.17",
 ]
 
@@ -45,7 +46,7 @@ features = ["pyo3/extension-module"]
 module-name = "warp_cache._warp_cache_rs"
 
 [tool.ruff]
-target-version = "py310"
+target-version = "py39"
 line-length = 100
 
 [tool.ruff.lint]
@@ -59,7 +60,7 @@ select = ["E", "F", "W", "I", "UP", "B", "SIM"]
 include = ["warp_cache"]
 
 [tool.ty.environment]
-python-version = "3.10"
+python-version = "3.9"
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]