build(python): update supported Python versions to 3.9 to 3.13

.github/workflows/ci.yml

@@ -11,16 +11,12 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11", "3.12", "3.13", "pypy-3.8"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "pypy-3.9"]
         os: [ubuntu-latest, windows-latest, macos-latest]
         exclude:
-          - python-version: 3.8
-            os: macos-latest
           - python-version: 3.9
             os: macos-latest
         include:
-          - python-version: 3.8
-            os: macos-13
           - python-version: 3.9
             os: macos-13
 

docs/index.md

@@ -38,7 +38,7 @@ version = "0.1.0"
 description = "A project built with PDM-Backend"
 authors = [{name = "John Doe", email="[email protected]"}]
 dependencies = ["requests"]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 readme = "README.md"
 license = "MIT"
 ```

pyproject.toml

@@ -7,7 +7,7 @@ authors = [
   { name = "Frost Ming", email = "[email protected]" }
 ]
 license = {text = "MIT"}
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 readme = "README.md"
 keywords = ["packaging", "PEP 517", "build"]
 dynamic = ["version"]
@@ -16,11 +16,11 @@ classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Topic :: Software Development :: Build Tools",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
 ]
 
 dependencies = [