Generate page of docs by version

pydotorg/urls.py

@@ -32,6 +32,7 @@
     path('getit/', include('downloads.urls', namespace='getit')),
     path('downloads/', include('downloads.urls', namespace='download')),
     path('doc/', views.DocumentationIndexView.as_view(), name='documentation'),
+    path('doc/versions2/', views.DocsByVersionView.as_view(), name='docs-versions'),
     path('blogs/', include('blogs.urls')),
     path('inner/', TemplateView.as_view(template_name="python/inner.html"), name='inner'),
 

pydotorg/views.py

@@ -1,5 +1,9 @@
+import datetime as dt
 import json
 import os
+import re
+from collections import defaultdict
+
 from django.conf import settings
 from django.http import HttpResponse, JsonResponse
 from django.views.generic.base import RedirectView, TemplateView
@@ -67,3 +71,113 @@ def get_redirect_url(self, *args, **kwargs):
             settings.AWS_STORAGE_BUCKET_NAME,
             image_path,
         ])
+
+
+class DocsByVersionView(TemplateView):
+    template_name = "python/versions.html"
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+
+        releases = Release.objects.filter(
+            is_published=True,
+            pre_release=False,
+        ).order_by("-release_date")
+
+        # Some releases have no documentation
+        no_docs = {"2.3.6", "2.3.7", "2.4.5", "2.4.6", "2.5.5", "2.5.6"}
+
+        # We'll group releases by major.minor version
+        version_groups = defaultdict(list)
+
+        for release in releases:
+            # Extract version number from name ("Python 3.14.0" -> "3.14.0")
+            version_match = re.match(r"Python ([\d.]+)", release.name)
+            if version_match:
+                full_version = version_match.group(1)
+
+                if full_version in no_docs:
+                    continue
+
+                # Get major.minor version ("3.14.0" -> "3.14")
+                version_parts = full_version.split(".")
+                major_minor = f"{version_parts[0]}.{version_parts[1]}"
+
+                # For 3.2.0 and earlier, use X.Y instead of X.Y.0
+                if len(version_parts) == 3:
+                    major, minor, patch = map(int, version_parts)
+                    # For versions <= 3.2.0 where patch is 0
+                    if (major, minor, patch) <= (3, 2, 0) and patch == 0:
+                        full_version = major_minor
+
+                release_data = {
+                    "stage": full_version,
+                    "date": release.release_date.replace(tzinfo=None),
+                }
+                version_groups[major_minor].append(release_data)
+
+        # Add legacy releases not in the database
+        legacy_releases_data = {
+            "2.2": [
+                {"stage": "2.2p1", "date": dt.datetime(2002, 3, 29)},
+            ],
+            "2.1": [
+                {"stage": "2.1.2", "date": dt.datetime(2002, 1, 16)},
+                {"stage": "2.1.1", "date": dt.datetime(2001, 7, 20)},
+                {"stage": "2.1", "date": dt.datetime(2001, 4, 15)},
+            ],
+            "2.0": [
+                {"stage": "2.0", "date": dt.datetime(2000, 10, 16)},
+            ],
+            "1.6": [
+                {"stage": "1.6", "date": dt.datetime(2000, 9, 5)},
+            ],
+            "1.5": [
+                {"stage": "1.5.2p2", "date": dt.datetime(2000, 3, 22)},
+                {"stage": "1.5.2p1", "date": dt.datetime(1999, 7, 6)},
+                {"stage": "1.5.2", "date": dt.datetime(1999, 4, 30)},
+                {"stage": "1.5.1p1", "date": dt.datetime(1998, 8, 6)},
+                {"stage": "1.5.1", "date": dt.datetime(1998, 4, 14)},
+                {"stage": "1.5", "date": dt.datetime(1998, 2, 17)},
+            ],
+            "1.4": [
+                {"stage": "1.4", "date": dt.datetime(1996, 10, 25)},
+            ],
+        }
+
+        # Merge legacy releases in
+        for version, items in legacy_releases_data.items():
+            version_groups[version].extend(items)
+
+        # Convert to list for template and sort releases within each version
+        version_list = []
+        for version, releases in version_groups.items():
+            # Sort x.y.z newest first
+            releases = sorted(
+                releases,
+                key=lambda x: x.get("date", dt.datetime.min),
+                reverse=True,
+            )
+            for release in releases:
+                release["date"] = release["date"].strftime("%-d %B %Y")
+
+            version_list.append(
+                {
+                    "version": version,
+                    "releases": releases,
+                }
+            )
+
+        # Sort x.y versions (newest first)
+        version_list.sort(
+            key=lambda x: [
+                int(n) if n.isdigit() else n for n in x["version"].split(".")
+            ],
+            reverse=True,
+        )
+
+        context.update({
+            "version_list": version_list,
+        })
+
+        return context

templates/python/versions.html

@@ -0,0 +1,58 @@
+{% extends "base.html" %}
+{% load boxes %}
+{% load sitetree %}
+
+{% block page_title %}Python documentation by version | {{ SITE_INFO.site_name }}{% endblock %}
+
+{% block body_attributes %}class="python pages default-page"{% endblock %}
+
+{% block breadcrumbs %}
+{% sitetree_breadcrumbs from "main" %}
+{% endblock breadcrumbs %}
+
+{% block content_attributes %}with-left-sidebar{% endblock %}
+
+{% block content %}
+    <article class="text">
+        <header class="article-header">
+            <h1 class="page-title">Python documentation by version</h1>
+        </header>
+
+        <p>Some previous versions of the documentation remain available online. Use the list below to select a version to view.</p>
+
+        <p>For unreleased (in development) documentation, see <a href="#in-development-versions">In development versions</a>.</p>
+
+        <h2>Release versions</h2>
+
+        {% for version_data in version_list %}
+            <h3>Python {{ version_data.version }}</h3>
+            <ul>
+            {% for release in version_data.releases %}
+                <li>
+                    {% if release.stage %}
+                        <a href="https://docs.python.org/release/{{ release.stage|cut:" " }}/">Python {{ release.stage }}</a>{% if release.date %}, released on {{ release.date }}{% endif %}
+                    {% endif %}
+                </li>
+            {% endfor %}
+            </ul>
+        {% endfor %}
+
+        <h2 id="in-development-versions">In development versions</h2>
+        <p>The latest, and unreleased, documentation for versions of Python still under development:</p>
+        <ul>
+            <li><a href="https://docs.python.org/dev/">Development version</a></li>
+            <li><a href="https://docs.python.org/3/">Python 3.x</a></li>
+        </ul>
+
+    </article>
+{% endblock content %}
+
+{% block left_sidebar %}
+<aside class="left-sidebar" role="secondary">
+    {% include "components/navigation-widget.html" %}
+
+    <div class="psf-sidebar-widget sidebar-widget">
+        {% box 'widget-sidebar-aboutpsf' %}
+    </div>
+</aside>
+{% endblock left_sidebar %}