Replace local release-cycle.json with PEPs repo version

.pre-commit-config.yaml

@@ -7,14 +7,12 @@ repos:
         args: [--exit-non-zero-on-fix]
       - id: ruff-format
         name: Run Ruff (format)
-        args: [--check]
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.5.0
     hooks:
       - id: check-case-conflict
       - id: check-merge-conflict
-      - id: check-json
       - id: check-yaml
       - id: debug-statements
       - id: end-of-file-fixer

_tools/generate_release_cycle.py

@@ -7,6 +7,7 @@
 import csv
 import datetime as dt
 import json
+from urllib.request import urlopen
 
 import jinja2
 
@@ -41,8 +42,8 @@ class Versions:
     """For converting JSON to CSV and SVG."""
 
     def __init__(self, *, limit_to_active=False, special_py27=False) -> None:
-        with open("include/release-cycle.json", encoding="UTF-8") as in_file:
-            self.versions = json.load(in_file)
+        with urlopen("https://peps.python.org/api/release-cycle.json") as in_file:
+            self.versions = json.loads(in_file.read().decode("utf-8"))
 
         # Generate a few additional fields
         for key, version in self.versions.items():

conf.py

@@ -1,4 +1,5 @@
 import json
+from urllib.request import urlopen
 
 extensions = [
     'notfound.extension',
@@ -178,8 +179,8 @@
 
 # Dynamically expose the Python version associated with the "main" branch.
 # Exactly one entry in ``release-cycle.json`` should have ``"branch": "main"``.
-with open("include/release-cycle.json", encoding="UTF-8") as _f:
-    _cycle = json.load(_f)
+with urlopen("https://peps.python.org/api/release-cycle.json") as _f:
+    _cycle = json.loads(_f.read().decode("utf-8"))
 
 _main_version = next(
     version for version, data in _cycle.items() if data.get("branch") == "main"