Rely on intrsphinx_registry to keep intersphinx up to date. (#1290)

docs/conf.py

@@ -15,6 +15,8 @@
 from pathlib import Path
 from typing import Any
 
+from intersphinx_registry import get_intersphinx_mapping
+
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
@@ -303,11 +305,9 @@
 
 
 # Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {
-    "python": ("https://docs.python.org/3/", None),
-    "ipython": ("https://ipython.readthedocs.io/en/latest", None),
-    "jupyter": ("https://jupyter.readthedocs.io/en/latest", None),
-}
+
+
+intersphinx_mapping = get_intersphinx_mapping(packages={"ipython", "python", "jupyter"})
 
 
 def setup(app):

pyproject.toml

@@ -51,6 +51,7 @@ docs = [
   "sphinxcontrib_github_alt",
   "sphinxcontrib-spelling",
   "sphinx-autodoc-typehints",
+  "intersphinx_registry",
   "trio"
 ]
 test = [