update dev environment and minimum versions

.github/workflows/ci.yaml

@@ -18,32 +18,31 @@ jobs:
     name: Check code quality
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
         with:
-          python-version: '3.8'
+          python-version: '3.12'
       - uses: pre-commit/action@v3.0.1
 
   test_pipenv:
     name: Run tests in development environment with pipenv
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
         with:
-          python-version: '3.8'
-      - run: pip install pipenv
-      - run: pipenv sync --dev
-      - run: pipenv run pytest
+          python-version: '3.12'
+      - run: pip install -r requirements.txt
+      - run: pytest
 
   check_install:
     runs-on: ubuntu-latest
     name: Check package installation via setup.py works
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
         with:
-          python-version: '3.8'
+          python-version: '3.12'
       - run: pip install --upgrade setuptools
       - name: Build package
         run: python setup.py sdist
@@ -55,13 +54,13 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.11', '3.12', '3.13', '3.14']
       fail-fast: false
     runs-on: ${{ matrix.os }}
     name: Run Tests on ${{ matrix.os }} - Python ${{ matrix.python-version }}
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
       - run: pip install --upgrade setuptools
@@ -73,12 +72,12 @@ jobs:
     needs: [pre-commit, test_pipenv, test_general]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Fetch all tags, so setuptools_scm can determine version
         run: git fetch --prune --unshallow --tags
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
-          python-version: '3.8'
+          python-version: '3.12'
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
@@ -94,10 +93,10 @@ jobs:
     needs: [dist]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v6
+      - uses: actions/setup-python@v6
         with:
-          python-version: '3.8'
+          python-version: '3.12'
       - name: Install dependencies
         run: pip install twine
       - uses: actions/download-artifact@v4
@@ -117,7 +116,7 @@ jobs:
           name: dist
           path: dist
       - name: Publish distribution to Test PyPI
-        uses: pypa/gh-action-pypi-publish@v1.8.14
+        uses: pypa/gh-action-pypi-publish@v1.13.0
         with:
           user: __token__
           password: ${{ secrets.test_pypi_token }}
@@ -135,12 +134,12 @@ jobs:
           name: dist
           path: dist
       - name: Publish package to PyPI
-        uses: pypa/gh-action-pypi-publish@v1.8.14
+        uses: pypa/gh-action-pypi-publish@v1.13.0
         with:
           user: __token__
           password: ${{ secrets.pypi_token }}
       - name: Publish distribution to Test PyPI
-        uses: pypa/gh-action-pypi-publish@v1.8.14
+        uses: pypa/gh-action-pypi-publish@v1.13.0
         with:
           user: __token__
           password: ${{ secrets.test_pypi_token }}

.readthedocs.yaml

@@ -8,9 +8,9 @@ sphinx:
   configuration: docs/source/conf.py
 
 build:
-  os: ubuntu-20.04
+  os: ubuntu-24.04
   tools:
-    python: "3.9"
+    python: "3.12"
 
 python:
   install:

CONTRIBUTING.md

@@ -9,22 +9,22 @@ an official release.
 
 ## Development Environment
 
-This project uses `pipenv` for setting up a stable development environment.
-The following assumes Python 3.8 and `pipenv` are installed on your system.
-You can set up the development environment like this:
-
+This project uses Python 3.12 and virtualenv for setting up the development
+environment:
 ```
 git clone https://github.com/jwallnoefer/requsim.git
 cd requsim
 git checkout dev
-pipenv sync --dev
-pipenv run pre-commit install
-pipenv shell
+python3.12 -m venv .venv
+source .venv/bin/activate
+```
+When the virtual environment is active, you can then install all the exact
+versions of this project's dependencies and set up pre-commit like this:
+```
+pip install -r requirements.txt
+pre-commit install
 ```
 
-This clones the repository and installs the necessary tools and dependencies
-into a Python virtual environment, that is managed by `pipenv`. `pipenv shell`
-launches a new subshell with this virtual environment activated.
 
 ## Tests