Remove python 3.7 support (end of life, matching Gymnasium) (#1030)

.github/workflows/linux-test.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
     steps:
       - uses: actions/checkout@v3
       # - uses: openrndr/[email protected]

.github/workflows/linux-tutorials-test.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
         tutorial: ['Tianshou', 'EnvironmentCreation', 'CleanRL', 'SB3/kaz', 'SB3/waterworld', 'SB3/connect_four', 'SB3/test'] # TODO: add back RLlib once it is fixed
     steps:
       - uses: actions/checkout@v3

.pre-commit-config.yaml

@@ -50,7 +50,7 @@ repos:
     rev: v3.3.2
     hooks:
       - id: pyupgrade
-        args: ["--py37-plus"]
+        args: ["--py38-plus"]
   - repo: https://github.com/pycqa/pydocstyle
     rev: 6.3.0
     hooks:
@@ -60,7 +60,7 @@ repos:
           - --explain
           - --convention=google
           - --count
-          # TODO: Remove ignoring rules D101, D102, D103, D105
+          # TODO: Remove ignoring rules D101, D102, D103, D105 (add docstrings to all public methods)
           - --add-ignore=D100,D107,D101,D102,D103,D105
         exclude: "__init__.py$|^pettingzoo.test|^docs"
         additional_dependencies: ["tomli"]

README.md

@@ -26,7 +26,7 @@ This does not include dependencies for all families of environments (some enviro
 
 To install the dependencies for one family, use `pip install pettingzoo[atari]`, or use `pip install pettingzoo[all]` to install all dependencies.
 
-We support Python 3.7, 3.8, 3.9 and 3.10 on Linux and macOS. We will accept PRs related to Windows, but do not officially support it.
+We support Python 3.8, 3.9, 3.10 and 3.11 on Linux and macOS. We will accept PRs related to Windows, but do not officially support it.
 
 ## Getting started
 

docs/content/basic_usage.md

@@ -11,7 +11,7 @@ This does not include dependencies for all families of environments (some enviro
 
 To install the dependencies for one family, use `pip install pettingzoo[atari]`, or use `pip install pettingzoo[all]` to install all dependencies.
 
-We support Python 3.7, 3.8, 3.9 and 3.10 on Linux and macOS. We will accept PRs related to Windows, but do not officially support it.
+We support Python 3.8, 3.9, 3.10 and 3.11 on Linux and macOS. We will accept PRs related to Windows, but do not officially support it.
 
 ## Initializing Environments
 

pyproject.toml

@@ -8,15 +8,14 @@ build-backend = "setuptools.build_meta"
 name = "pettingzoo"
 description = "Gymnasium for multi-agent reinforcement learning."
 readme = "README.md"
-requires-python = ">= 3.7"
+requires-python = ">= 3.8"
 authors = [{ name = "Farama Foundation", email = "[email protected]" }]
 license = { text = "MIT License" }
 keywords = ["Reinforcement Learning", "game", "RL", "AI", "gymnasium"]
 classifiers = [
     "Development Status :: 4 - Beta",  # change to `5 - Production/Stable` when ready
     "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",