Support Python 3.13, drop Python 3.8

.github/workflows/pages.yml

@@ -9,7 +9,7 @@ on:
 
 env:
   POETRY_VERSION: "1.8.4"
-  PYTHON_VERSION: "3.10"
+  PYTHON_VERSION: "3.11"
 
 jobs:
   deploy:

.github/workflows/python.yml

@@ -4,14 +4,14 @@ on: [push, pull_request]
 
 env:
   POETRY_VERSION: "1.8.4"
-  PYTHON_VERSION: "3.10"
+  PYTHON_VERSION: "3.11"
 
 jobs:
   test:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        python-version: [ "3.8", "3.9", "3.10", "3.11", "3.12" ]
+        python-version: [ "3.9", "3.10", "3.11", "3.12", "3.13" ]
     steps:
       - uses: actions/checkout@v4
       - name: Install poetry

Dockerfile

@@ -8,7 +8,7 @@
 #     subtle errors when using MUSL.
 #   - These Python packages usually only provide binary wheels for GLIBC, so the packages
 #     will need to be recompiled fully within the Docker images, increasing build times.
-FROM python:3.10-slim-bookworm AS python_builder
+FROM python:3.11-slim-bookworm AS python_builder
 
 # Pin Poetry to a specific version to make Docker builds reproducible.
 ENV POETRY_VERSION=1.8.4
@@ -60,7 +60,7 @@ RUN poetry build && \
 
 ## Final Image
 # The image used in the final image MUST match exactly to the python_builder image.
-FROM python:3.10-slim-bookworm
+FROM python:3.11-slim-bookworm
 
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONBUFFERED=1

README.md

@@ -20,7 +20,7 @@ interface (`fact.cli`).
 
 # Requirements
 
-Python 3.8+.
+Python 3.9+.
 
 # Package Management
 

noxfile.py

@@ -11,7 +11,7 @@
 nox.options.sessions = ["lint", "type_check", "test", "docs"]
 
 
-@session(python=["3.8", "3.9", "3.10", "3.11", "3.12"])
+@session(python=["3.9", "3.10", "3.11", "3.12", "3.13"])
 def test(s: Session) -> None:
     s.install(".", "pytest", "pytest-cov", "pytest-randomly")
     s.run(
@@ -67,14 +67,12 @@ def docs(s: Session) -> None:
 
 @session(venv_backend="none")
 def docs_check_urls(s: Session) -> None:
-    # TODO: Replace dict merge with d1 | d2 when dropping support for Python 3.8.
-    s.run("mkdocs", "build", env={**doc_env, **{"HTMLPROOFER_VALIDATE_EXTERNAL_URLS": str(True)}})
+    s.run("mkdocs", "build", env=doc_env | {"HTMLPROOFER_VALIDATE_EXTERNAL_URLS": str(True)})
 
 
 @session(venv_backend="none")
 def docs_offline(s: Session) -> None:
-    # TODO: Replace dict merge with d1 | d2 when dropping support for Python 3.8.
-    s.run("mkdocs", "build", env={**doc_env, **{"MKDOCS_MATERIAL_OFFLINE": str(True)}})
+    s.run("mkdocs", "build", env=doc_env | {"MKDOCS_MATERIAL_OFFLINE": str(True)})
 
 
 @session(venv_backend="none")

pyproject.toml

@@ -14,11 +14,11 @@ classifiers = [
     "Operating System :: OS Independent",
     "Programming Language :: Python",
     "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",
     "Typing :: Typed",
     # Include this classifier to prevent accidently publishing private code to PyPI.
     #   https://pypi.org/classifiers/
@@ -32,7 +32,7 @@ classifiers = [
 # Some packages, such as scipy, constrain their upper bound of Python versions they support.
 # Without also constraining the upper bound here, Poetry will not select those versions and will
 # result in an old version being resolved/locked.
-python = "^3.8, <3.13"
+python = "^3.9, <3.14"
 rich = "*"
 typer-slim = { version = "*", extras = ["standard"] }