add python==3.13 and drop python==3.8

.github/workflows/run-pytest.yml

@@ -10,10 +10,10 @@ jobs:
     strategy:
       fail-fast: true
       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']
         numpy-version: ['>=1.21,<2.0', '>=2.0']
         exclude:
-          - python-version: '3.8'  # numpy>=2.0 requires Python>=3.9
+          - python-version: '3.9'  # numpy>=2.0 requires Python>=3.9
             numpy-version: '>=2.0'
     steps:
       - uses: actions/checkout@v4
@@ -35,7 +35,7 @@ jobs:
       - uses: actions/checkout@v4
       - run: |
            docker build -f bin/necessary-py.Dockerfile \
-             --build-arg PYTHON_VERSION='3.10' \
+             --build-arg PYTHON_VERSION='3.12' \
              --tag gymnasium-necessary-docker .
       - name: Run tests
         run: |

.pre-commit-config.yaml

@@ -38,7 +38,7 @@ repos:
     rev: v3.17.0
     hooks:
       - id: pyupgrade
-        args: ["--py38-plus"]
+        args: ["--py39-plus"]
   - repo: https://github.com/PyCQA/isort
     rev: 5.13.2
     hooks:

README.md

@@ -28,7 +28,7 @@ To install the base Gymnasium library, use `pip install gymnasium`
 
 This does not include dependencies for all families of environments (there's a massive number, and some can be problematic to install on certain systems). You can install these dependencies for one family like `pip install "gymnasium[atari]"` or use `pip install "gymnasium[all]"` to install all dependencies.
 
-We support and test for Python 3.8, 3.9, 3.10, 3.11 and 3.12 on Linux and macOS. We will accept PRs related to Windows, but do not officially support it.
+We support and test for Linux and macOS. We will accept PRs related to Windows, but do not officially support it.
 
 ## API
 

pyproject.toml

@@ -8,19 +8,19 @@ build-backend = "setuptools.build_meta"
 name = "gymnasium"
 description = "A standard API for reinforcement learning and a diverse set of reference environments (formerly Gym)."
 readme = "README.md"
-requires-python = ">= 3.8"
+requires-python = ">= 3.9"
 authors = [{ name = "Farama Foundation", email = "[email protected]" }]
 license = { text = "MIT License" }
 keywords = ["Reinforcement Learning", "game", "RL", "AI", "gymnasium"]
 classifiers = [
     "Development Status :: 5 - Production/Stable",
     "License :: OSI Approved :: MIT License",
     "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",
     'Intended Audience :: Science/Research',
     'Topic :: Scientific/Engineering :: Artificial Intelligence',
 ]