Revert Python 3.12.7 to 3.11.8

This reverts commit cb75394,
which is suspected to slowdown email processing.

.circleci/config.yml

@@ -65,7 +65,7 @@ executors:
     parameters: &python_parameters
       python_version:
         description: "python version tag"
-        default: "3.12.7"
+        default: "3.11.8"
         type: string
       variant:
         description: "image variant"
@@ -679,6 +679,13 @@ workflows:
           update_dependency: "Django>=5.0,<5.1"
           filters: *default_filters
 
+      - python_job:
+          name: python 3.12 test
+          python_version: "3.12.7"
+          command: pytest
+          test_results_filename: pytest-python-3-12.xml
+          filters: *default_filters
+
       - python_job:
           name: python 3.13 test
           python_version: "3.13"

.github/workflows/dependabot-glean-parser.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Set up Python 3
         uses: actions/[email protected]
         with:
-          python-version: '3.12'
+          python-version: '3.11'
           cache: 'pip'
       - name: Install Python dependencies
         run: |

.github/workflows/lint-pending-strings.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Set up Python 3
         uses: actions/[email protected]
         with:
-          python-version: '3.12'
+          python-version: '3.11'
           cache: 'pip'
       - name: Install Python dependencies
         run: |

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.12.7
+FROM python:3.11.10
 
 ARG CIRCLE_BRANCH
 ARG CIRCLE_SHA1

README.md

@@ -46,7 +46,7 @@ Please refer to our [coding standards](docs/coding-standards.md) for code styles
 
 ### Requirements
 
-- python 3.12 (we recommend [venv](https://packaging.python.org/en/latest/guides/installing-using-pip-and-virtual-environments/))
+- python 3.11 (we recommend [venv](https://packaging.python.org/en/latest/guides/installing-using-pip-and-virtual-environments/))
 - PostgreSQL - even if you are using sqlite for development, requirements.txt installs
   psycopg2 which [requires libpq](https://www.psycopg.org/docs/install.html#build-prerequisites) and Python header files.
   The following should work:

pyproject.toml

@@ -1,5 +1,5 @@
 [project]
-requires-python = ">= 3.12"
+requires-python = ">= 3.11"
 
 [tool.coverage.report]
 omit = [
@@ -28,7 +28,7 @@ django_settings_module = "privaterelay.settings"
 exclude = "env"
 mypy_path = "$MYPY_CONFIG_FILE_DIR/mypy_stubs"
 plugins = ["mypy_django_plugin.main"]
-python_version = "3.12"
+python_version = "3.11"
 show_error_codes = true
 strict = true
 

runtime.txt

@@ -1 +1 @@
-python-3.12.7
+python-3.11.10