apply patch from @AA-Turner

Signed-off-by: William Woodruff <[email protected]>

Author: woodruffw

pep_sphinx_extensions/generate_rss.py

@@ -59,14 +59,12 @@ def pep_abstract(document: nodes.document) -> str:
         if title_node is None:
             continue
 
-        para_node = None
         if title_node.astext() == "Abstract":
-            para_node = node.next_node(nodes.paragraph)
-        elif title_node.astext() == "Introduction":
-            para_node = node.next_node(nodes.paragraph)
-
-        if para_node:
-            introduction = para_node.astext().strip().replace("\n", " ")
+            if (para_node := node.next_node(nodes.paragraph)) is not None:
+                return para_node.astext().strip().replace("\n", " ")
+            return ""
+        if title_node.astext() == "Introduction":
+            introduction = node.next_node(nodes.paragraph).astext().strip().replace("\n", " ")
 
     return introduction