feat: Support Python 3.12 🐍

.github/workflows/test.yml

@@ -19,6 +19,7 @@ jobs:
   tests:
     name: Test on ${{ matrix.python-version }} (${{ matrix.session }}) / ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
+    continue-on-error: ${{ matrix.experimental || false }}
     env:
       NOXSESSION: ${{ matrix.session }}
     strategy:
@@ -30,6 +31,7 @@ jobs:
         include:
         - { session: doctest, python-version: "3.10", os: "ubuntu-latest" }
         - { session: mypy,    python-version: "3.8",  os: "ubuntu-latest" }
+        - { session: tests,   python-version: "3.12", os: "ubuntu-latest", experimental: true }
 
     steps:
     - name: Check out the repository
@@ -45,7 +47,7 @@ jobs:
     - name: Setup Python ${{ matrix.python-version }}
       uses: actions/[email protected]
       with:
-        python-version: ${{ matrix.python-version }}
+        python-version: ${{ matrix.python-version }}${{ matrix.experimental && '-dev' || '' }}
         architecture: x64
         cache: 'pip'
         cache-dependency-path: 'poetry.lock'

noxfile.py

@@ -27,7 +27,7 @@
 """
 
 package = "singer_sdk"
-python_versions = ["3.11", "3.10", "3.9", "3.8", "3.7"]
+python_versions = ["3.12", "3.11", "3.10", "3.9", "3.8", "3.7"]
 main_python_version = "3.10"
 locations = "singer_sdk", "tests", "noxfile.py", "docs/conf.py"
 nox.options.sessions = (