.github/workflows/pythonpackage.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
 
     steps:
     - uses: actions/checkout@v3

.readthedocs.yml

@@ -3,14 +3,12 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.12"
+    python: "3.11"
   jobs:
-    post_create_environment:
-      - pip install poetry
     post_install:
-      # VIRTUAL_ENV needs to be set manually for now.
-      # See https://github.com/readthedocs/readthedocs.org/pull/11152/
-      - VIRTUAL_ENV=$READTHEDOCS_VIRTUALENV_PATH poetry install --with docs
+      - pip install poetry
+      - poetry config virtualenvs.create false
+      - poetry install --with=docs
 
 sphinx:
   configuration: docs/source/conf.py

pyproject.toml

@@ -11,14 +11,14 @@ keywords = ["icalendar", "sync", "google", "calendar"]
 classifiers = [
     'License :: OSI Approved :: MIT License',
     'Operating System :: OS Independent',
+    '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',
 ]
 
 [tool.poetry.dependencies]
-python = "^3.9"
+python = "^3.8"
 google-auth = "2.28.1"
 google-api-python-client = "2.120.0"
 icalendar = "5.0.11"