Update minimum Python version to 3.10

Python 3.9 reaches end-of-life October 2025. Python 3.10 adoption is
now mainstream - major frameworks (strawberry, Django 5.0, FastAPI) require it.

This enables modern Python features:
- Dataclasses with `kw_only`
- Union types with `|` syntax (PEP 604)
- isinstance() with union types directly
- match statements for pattern matching

Author: corydolphin

.github/workflows/test.yml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14', 'pypy3.9', 'pypy3.10', 'pypy3.11']
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14', 'pypy3.10', 'pypy3.11']
 
     steps:
       - name: Checkout project
@@ -36,45 +36,4 @@ jobs:
 
       - name: Run unit tests with tox
         id: test
-        run: tox
-
-  tests-old:
-    name: 🧪 Tests (older Python versions)
-    runs-on: ubuntu-22.04
-
-    strategy:
-      matrix:
-        python-version: ['3.7', '3.8']
-
-    steps:
-      - name: Checkout project
-        id: checkout
-        uses: actions/checkout@v5
-
-      - name: Set up Python 3.14 (tox runner)
-        id: setup-python
-        uses: actions/setup-python@v6
-        with:
-          python-version: '3.14'
-
-      - name: Install uv
-        id: setup-uv
-        uses: astral-sh/setup-uv@v6
-
-      - name: Install tox and plugins
-        id: install-tox
-        run: |
-          uv pip install --system tox tox-uv tox-gh-actions
-
-      - name: Set up target Python ${{ matrix.python-version }}
-        id: setup-target-python
-        uses: actions/setup-python@v6
-        with:
-          python-version: ${{ matrix.python-version }}
-
-      - name: Run unit tests with tox for target
-        id: test
-        shell: bash
-        run: |
-          ENV="py${{ matrix.python-version }}"; ENV=${ENV/./}
-          python3.14 -m tox -e "$ENV"
+        run: tox

pyproject.toml

@@ -3,7 +3,7 @@ name = "graphql-core"
 version = "3.3.0a11"
 description = "GraphQL-core is a Python port of GraphQL.js, the JavaScript reference implementation for GraphQL."
 readme = "README.md"
-requires-python = ">=3.7"
+requires-python = ">=3.10"
 license = "MIT"
 license-files = ["LICENSE"]
 authors = [ { name = "Christoph Zwerschke", email = "cito@online.de" } ]
@@ -13,19 +13,13 @@ classifiers = [
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.7",
-    "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",
     "Programming Language :: Python :: 3.14",
 ]
-dependencies = [
-    "typing-extensions>=4.12.2,<5; python_version >= '3.8' and python_version < '3.10'",
-    "typing-extensions>=4.7.1,<5; python_version < '3.8'",
-]
+dependencies = []
 
 [project.urls]
 Homepage = "https://github.com/graphql-python/graphql-core"

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py3{7,8,9,10,11,12,13,14}, pypy3{9,10,11}, ruff, mypy, docs
+envlist = py3{10,11,12,13,14}, pypy3{10,11}, ruff, mypy, docs
 isolated_build = true
 requires =
     tox>=4.8
@@ -9,16 +9,12 @@ installer = uv
 [gh-actions]
 python =
     3: py314
-    3.7: py37
-    3.8: py38
-    3.9: py39
     3.10: py310
     3.11: py311
     3.12: py312
     3.13: py313
     3.14: py314
     pypy3: pypy311
-    pypy3.9: pypy39
     pypy3.10: pypy310
     pypy3.11: pypy311
 
@@ -54,5 +50,5 @@ pass_env =
 commands =
     # to also run the time-consuming tests: tox -e py314 -- --run-slow
     # to run the benchmarks: tox -e py314 -- -k benchmarks --benchmark-enable
-    py3{7,8,9,10,11,12,13},pypy3{9,10,11}: python -m pytest tests {posargs}
+    py3{10,11,12,13},pypy3{10,11}: python -m pytest tests {posargs}
     py314: python -m pytest tests {posargs: --cov-report=term-missing --cov=graphql --cov=tests --cov-fail-under=100}