🩹(backend) get current release from pyproject.toml

"get_release" was returning NA, we fixed it by
getting the version from pyproject.toml, to do so we
use tomllib
Since tomllib is a native library from Python 3.11,
we bump the required version to 3.11 on the pyproject.toml.

src/backend/impress/settings.py

@@ -10,8 +10,8 @@ For the full list of settings and their values, see
 https://docs.djangoproject.com/en/3.1/ref/settings/
 """
 
-import json
 import os
+import tomllib
 
 from django.utils.translation import gettext_lazy as _
 
@@ -27,19 +27,12 @@ DATA_DIR = os.path.join("/", "data")
 def get_release():
     """
     Get the current release of the application
-
-    By release, we mean the release from the version.json file à la Mozilla [1]
-    (if any). If this file has not been found, it defaults to "NA".
-
-    [1]
-    https://github.com/mozilla-services/Dockerflow/blob/master/docs/version_object.md
     """
-    # Try to get the current release from the version.json file generated by the
-    # CI during the Docker image build
     try:
-        with open(os.path.join(BASE_DIR, "version.json"), encoding="utf8") as version:
-            return json.load(version)["version"]
-    except FileNotFoundError:
+        with open(os.path.join(BASE_DIR, "pyproject.toml"), "rb") as f:
+            pyproject_data = tomllib.load(f)
+        return pyproject_data["project"]["version"]
+    except (FileNotFoundError, KeyError):
         return "NA"  # Default: not available
 
 

src/backend/pyproject.toml

@@ -17,13 +17,13 @@ classifiers = [
     "License :: OSI Approved :: MIT License",
     "Natural Language :: English",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.12",
 ]
 description = "An application to print markdown to pdf from a set of managed templates."
 keywords = ["Django", "Contacts", "Templates", "RBAC"]
 license = { file = "LICENSE" }
 readme = "README.md"
-requires-python = ">=3.10"
+requires-python = ">=3.12"
 dependencies = [
     "boto3==1.35.44",
     "Brotli==1.1.0",
@@ -127,6 +127,7 @@ select = [
 [tool.ruff.lint.isort]
 section-order = ["future","standard-library","django","third-party","impress","first-party","local-folder"]
 sections = { impress=["core"], django=["django"] }
+extra-standard-library = ["tomllib"]
 
 [tool.ruff.lint.per-file-ignores]
 "**/tests/*" = ["S", "SLF"]