Fix compatibility with the latest Sphinx 8 (ipython#14596)

Carreau · web-flow · commit c1628686347e · 2024-12-02T20:31:55.000+01:00
Resolves: ipython#14595 The `fallback` value cannot be an empty string in Sphinx 8 and there is no way to store `None` in TOML so it has to be handled in `conf.py`.
diff --git a/docs/source/conf.py b/docs/source/conf.py
@@ -118,7 +118,7 @@
     intersphinx_mapping = config["intersphinx_mapping"]
     for k, v in intersphinx_mapping.items():
         intersphinx_mapping[k] = tuple(
-            [intersphinx_mapping[k]["url"], intersphinx_mapping[k]["fallback"]]
+            [intersphinx_mapping[k]["url"], intersphinx_mapping[k]["fallback"] or None]
         )
 
 

Original file line number	Diff line number	Diff line change
`@@ -118,7 +118,7 @@`
`118`	`118`	`intersphinx_mapping = config["intersphinx_mapping"]`
`119`	`119`	`for k, v in intersphinx_mapping.items():`
`120`	`120`	`intersphinx_mapping[k] = tuple(`
`121`		`- [intersphinx_mapping[k]["url"], intersphinx_mapping[k]["fallback"]]`
	`121`	`+ [intersphinx_mapping[k]["url"], intersphinx_mapping[k]["fallback"] or None]`
`122`	`122`	`)`
`123`	`123`
`124`	`124`