fix: Switch to pyproject.toml based builds (#365)

* fix: Switch to `pyproject.toml` based builds

* chore: Add newly supported Python versions (3.11 & 3.12)

* fix: remove `setup.py` from linting steps

* chore: disable Python 3.12 conformance tests

Author: di

.github/workflows/buildpack-integration-test.yml

@@ -58,3 +58,29 @@ jobs:
       builder-runtime: 'python310'
       builder-runtime-version: '3.10'
       start-delay: 5
+  python311:
+    uses: GoogleCloudPlatform/functions-framework-conformance/.github/workflows/buildpack-integration-test.yml@main
+    with:
+      http-builder-source: 'tests/conformance'
+      http-builder-target: 'write_http_declarative'
+      cloudevent-builder-source: 'tests/conformance'
+      cloudevent-builder-target: 'write_cloud_event_declarative'
+      prerun: 'tests/conformance/prerun.sh ${{ github.sha }}'
+      builder-runtime: 'python311'
+      builder-runtime-version: '3.11'
+      start-delay: 5
+# Python 3.12 conformance tests are disabled due to the buildpack defaulting to
+# Ubuntu 18.04, which has no Python 3.12 version, and being unable to specify
+# the OS/stack via the conformance test configuration
+#
+#  python312:
+#    uses: GoogleCloudPlatform/functions-framework-conformance/.github/workflows/buildpack-integration-test.yml@main
+#    with:
+#      http-builder-source: 'tests/conformance'
+#      http-builder-target: 'write_http_declarative'
+#      cloudevent-builder-source: 'tests/conformance'
+#      cloudevent-builder-target: 'write_cloud_event_declarative'
+#      prerun: 'tests/conformance/prerun.sh ${{ github.sha }}'
+#      builder-runtime: 'python312'
+#      builder-runtime-version: '3.12'
+#      start-delay: 5

pyproject.toml

@@ -0,0 +1,57 @@
+[project]
+name = "functions-framework"
+version = "3.8.2"
+description = "An open source FaaS (Function as a service) framework for writing portable Python functions -- brought to you by the Google Cloud Functions team."
+readme = "README.md"
+requires-python = ">=3.5, <4"
+# Once we drop support for Python 3.7 and 3.8, this can become
+# license = "Apache-2.0"
+license = {text = "Apache-2.0"}
+authors = [
+  { name = "Google LLC", email = "[email protected]" }
+]
+maintainers = [
+  { name = "Google LLC", email = "[email protected]" }
+]
+keywords = ["functions-framework"]
+classifiers = [
+  "Development Status :: 5 - Production/Stable",
+  "Intended Audience :: Developers",
+  "Programming Language :: Python :: 3.7",
+  "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",
+]
+dependencies = [
+  "flask>=2.0,<4.0",
+  "click>=7.0,<9.0",
+  "watchdog>=1.0.0",
+  "gunicorn>=22.0.0; platform_system!='Windows'",
+  "cloudevents>=1.2.0,<2.0.0",
+  "Werkzeug>=0.14,<4.0.0",
+]
+
+[project.urls]
+Homepage = "https://github.com/googlecloudplatform/functions-framework-python"
+
+[project.scripts]
+ff = "functions_framework._cli:_cli"
+functions-framework = "functions_framework._cli:_cli"
+functions_framework = "functions_framework._cli:_cli"
+functions-framework-python = "functions_framework._cli:_cli"
+functions_framework_python = "functions_framework._cli:_cli"
+
+[build-system]
+requires = ["setuptools>=61.0.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools.packages.find]
+where = ["src"]
+
+[tool.setuptools.package-data]
+functions_framework = ["py.typed"]
+
+[tool.setuptools.package-dir]
+"" = "src"

setup.py

@@ -42,8 +42,8 @@ deps =
     mypy
     build
 commands =
-    black --check src tests setup.py conftest.py --exclude tests/test_functions/background_load_error/main.py
-    isort -c src tests setup.py conftest.py
+    black --check src tests conftest.py --exclude tests/test_functions/background_load_error/main.py
+    isort -c src tests conftest.py
     mypy tests/test_typing.py
     python -m build
     twine check dist/*