Replace hardcoded SOURCE_URI with patchlevel check

Author: hugovk

Doc/conf.py

@@ -15,8 +15,7 @@
 sys.path.append(os.path.abspath('tools/extensions'))
 sys.path.append(os.path.abspath('includes'))
 
-# Python specific content from Doc/Tools/extensions/pyspecific.py
-from pyspecific import SOURCE_URI
+from patchlevel import get_header_version_info
 
 # General configuration
 # ---------------------
@@ -555,16 +554,20 @@
     r'https://unix.org/version2/whatsnew/lp64_wp.html',
 ]
 
+
 # Options for sphinx.ext.extlinks
 # -------------------------------
 
+v = get_header_version_info()
+branch = "main" if v.releaselevel == "alpha" else f"{v.major}.{v.minor}"
+
 # This config is a dictionary of external sites,
 # mapping unique short aliases to a base URL and a prefix.
 # https://www.sphinx-doc.org/en/master/usage/extensions/extlinks.html
 extlinks = {
     "oss-fuzz": ("https://issues.oss-fuzz.com/issues/%s", "#%s"),
     "pypi": ("https://pypi.org/project/%s/", "%s"),
-    "source": (SOURCE_URI, "%s"),
+    "source": (f"https://github.com/python/cpython/tree/{branch}/%s", "%s"),
 }
 extlinks_detect_hardcoded_links = True
 

Doc/tools/extensions/pyspecific.py

@@ -10,19 +10,10 @@
 """
 
 import re
-import io
-from os import getenv, path
 
-from docutils import nodes
-from docutils.parsers.rst import directives
-from docutils.utils import unescape
 from sphinx import addnodes
-from sphinx.domains.python import PyFunction, PyMethod, PyModule
-from sphinx.locale import _ as sphinx_gettext
-from sphinx.util.docutils import SphinxDirective
+from sphinx.domains.python import PyFunction, PyMethod
 
-# Used in conf.py and updated here by python/release-tools/run_release.py
-SOURCE_URI = 'https://github.com/python/cpython/tree/main/%s'
 
 class PyAwaitableMixin(object):
     def handle_signature(self, sig, signode):