build: move to PEP517 and pyproject.toml, drop support for Py3.6 and Py3.7 (#417)

* chore: move to pyproject.toml

* chore: forced to drop Python 3.6 to upgrade

* chore: drop support for Python 3.6 and 3.7

* chore: remove old references to py36/py37

* chore: remove setup.py, replaced by pyproject.toml

.github/workflows/tests.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
 
     steps:
     - uses: actions/checkout@v4

README.md

@@ -138,12 +138,10 @@ Read on to find out how to build your first component!
 
 ## Compatiblity
 
-Django-components supports all <a href="https://docs.djangoproject.com/en/dev/faq/install/#what-python-version-can-i-use-with-django">officially supported versions</a> of Django and Python.
+Django-components supports all supported combinations versions of [Django](https://docs.djangoproject.com/en/dev/faq/install/#what-python-version-can-i-use-with-django) and [Python](https://devguide.python.org/versions/#versions).
 
 | Python version | Django version           |
 |----------------|--------------------------|
-| 3.6            | 3.2                      |
-| 3.7            | 3.2                      |
 | 3.8            | 3.2, 4.0, 4.1, 4.2       |
 | 3.9            | 3.2, 4.0, 4.1, 4.2       |
 | 3.10           | 3.2, 4.0, 4.1, 4.2, 5.0  |
@@ -817,14 +815,12 @@ pytest
 The library is also tested across many versions of Python and Django. To run tests that way:
 
 ```sh
-pyenv install -s 3.6
-pyenv install -s 3.7
 pyenv install -s 3.8
 pyenv install -s 3.9
 pyenv install -s 3.10
 pyenv install -s 3.11
 pyenv install -s 3.12
-pyenv local 3.6 3.7 3.8 3.9 3.10 3.11 3.12
+pyenv local 3.8 3.9 3.10 3.11 3.12
 tox -p
 ```
 

pyproject.toml

@@ -1,3 +1,48 @@
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "django_components"
+version = "0.63"
+requires-python = ">=3.8, <4.0"
+description = "A way to create simple reusable template components in Django."
+keywords = ["django", "components", "css", "js", "html"]
+readme = "README.md"
+authors = [
+    {name = "Emil Stenström", email = "emil@emilstenstrom.se"},
+]
+classifiers = [
+    "Framework :: Django",
+    "Framework :: Django :: 3.2",
+    "Framework :: Django :: 4.0",
+    "Framework :: Django :: 4.1",
+    "Framework :: Django :: 4.2",
+    "Framework :: Django :: 5.0",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "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 = [
+    'Django>=3.2',
+]
+license = {text = "MIT"}
+
+[project.urls]
+Homepage = "https://github.com/EmilStenstrom/django-components/"
+
+
+[tool.setuptools.packages.find]
+where = ["src"]
+include = ["django_components*"]
+exclude = ["django_components.tests*"]
+namespaces = false
+
 [tool.black]
 line-length = 119
 include = '\.pyi?$'

scripts/supported_versions.py

@@ -8,6 +8,35 @@ Version = Tuple[int, ...]
 VersionMapping = Dict[Version, List[Version]]
 
 
+def cut_by_content(content: str, cut_from: str, cut_to: str):
+    return content.split(cut_from)[1].split(cut_to)[0]
+
+
+def keys_from_content(content: str):
+    return re.findall(r"<td>(.*?)</td>", content)
+
+
+def get_python_supported_version(url: str) -> list[Version]:
+    with request.urlopen(url) as response:
+        response_content = response.read()
+
+    content = response_content.decode("utf-8")
+
+    def parse_supported_versions(content: str) -> list[Version]:
+        content = cut_by_content(
+            content,
+            '<section id="supported-versions">',
+            "</table>",
+        )
+        content = cut_by_content(content, "<tbody>", "</tbody>")
+        lines = content.split("<tr ")
+        versions = [match[0] for line in lines[1:] if (match := re.findall(r"<p>([\d.]+)</p>", line))]
+        versions_tuples = [version_to_tuple(version) for version in versions]
+        return versions_tuples
+
+    return parse_supported_versions(content)
+
+
 def get_supported_versions(url: str):
     with request.urlopen(url) as response:
         response_content = response.read()
@@ -15,12 +44,6 @@ def get_supported_versions(url: str):
     content = response_content.decode("utf-8")
 
     def parse_supported_versions(content):
-        def cut_by_content(content, cut_from, cut_to):
-            return content.split(cut_from)[1].split(cut_to)[0]
-
-        def keys_from_content(content):
-            return re.findall(r"<td>(.*?)</td>", content)
-
         content = cut_by_content(
             content,
             '<span id="what-python-version-can-i-use-with-django">',
@@ -169,7 +192,7 @@ def build_pyenv(python_to_django: VersionMapping):
 
 
 def build_ci_python_versions(python_to_django: Dict[str, str]):
-    # Outputs python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11']
+    # Outputs python-version, like: ['3.8', '3.9', '3.10', '3.11', '3.12']
     lines = [
         f"'{env_format(python_version, divider='.')}'" for python_version, django_versions in python_to_django.items()
     ]
@@ -178,11 +201,14 @@ def build_ci_python_versions(python_to_django: Dict[str, str]):
 
 
 def main():
+    active_python = get_python_supported_version("https://devguide.python.org/versions/")
     django_to_python = get_supported_versions("https://docs.djangoproject.com/en/dev/faq/install/")
     latest_version = get_latest_version("https://www.djangoproject.com/download/")
 
     python_to_django = build_python_to_django(django_to_python, latest_version)
 
+    python_to_django = dict(filter(lambda item: item[0] in active_python, python_to_django.items()))
+
     tox_envlist = build_tox_envlist(python_to_django)
     print("Add this to tox.ini:\n")
     print("[tox]")
@@ -200,7 +226,7 @@ def main():
     print()
     print()
 
-    print("Add this to setup.py:\n")
+    print("Add this to pyproject.toml:\n")
     pypi_classifiers = build_pypi_classifiers(python_to_django)
     print(pypi_classifiers)
     print()

setup.py

@@ -1,43 +0,0 @@
-# -*- coding: utf-8 -*-
-import os
-
-from setuptools import find_packages, setup
-
-VERSION = "0.63"
-
-setup(
-    name="django_components",
-    packages=find_packages(where="src", exclude=["tests", "tests.*"]),
-    package_dir={"": "src"},
-    package_data={
-        "django_components": ["py.typed"],
-    },
-    version=VERSION,
-    description="A way to create simple reusable template components in Django.",
-    long_description=open(os.path.join(os.path.dirname(__file__), "README.md"), encoding="utf8").read(),
-    long_description_content_type="text/markdown",
-    author="Emil Stenström",
-    author_email="emil@emilstenstrom.se",
-    url="https://github.com/EmilStenstrom/django-components/",
-    install_requires=["Django>=3.2"],
-    license="MIT",
-    keywords=["django", "components", "css", "js", "html"],
-    classifiers=[
-        "Programming Language :: Python :: 3.6",
-        "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",
-        "Framework :: Django :: 3.2",
-        "Framework :: Django :: 4.0",
-        "Framework :: Django :: 4.1",
-        "Framework :: Django :: 4.2",
-        "Framework :: Django :: 5.0",
-        "Programming Language :: Python",
-        "Programming Language :: Python :: 3",
-        "Operating System :: OS Independent",
-        "Framework :: Django",
-    ],
-)

tox.ini

@@ -1,10 +1,9 @@
-# This library strives to support the same versions of django and python that django supports:
+# This library strives to support all officially supported combinations of Python and Django:
 # https://docs.djangoproject.com/en/dev/faq/install/#what-python-version-can-i-use-with-django
+# https://devguide.python.org/versions/#versions
 
 [tox]
 envlist =
-  py36-django{32}
-  py37-django{32}
   py38-django{32,40,41,42}
   py39-django{32,40,41,42}
   py310-django{32,40,41,42,50}
@@ -14,14 +13,9 @@ envlist =
   isort
   coverage
   mypy
-requires = virtualenv<20.22.0
-
-# https://tox.wiki/en/latest/faq.html#testing-end-of-life-python-versions
 
 [gh-actions]
 python =
-  3.6: py36-django{32}
-  3.7: py37-django{32}
   3.8: py38-django{32,40,41,42}
   3.9: py39-django{32,40,41,42}
   3.10: py310-django{32,40,41,42,50}