From 3b9d1facdba73b32b1140267bcd85c3b6e345e01 Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+aa-turner@users.noreply.github.com>
Date: Sat, 28 Sep 2024 14:09:14 +0100
Subject: [PATCH] Fix ``TypeError: 'NoneType' object is not iterable``

---
 build_docs.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build_docs.py b/build_docs.py
index 861eace..a6e82ff 100755
--- a/build_docs.py
+++ b/build_docs.py
@@ -248,7 +248,7 @@ def run_with_logging(cmd, cwd=None):
     logging.debug("Run: %s", shlex.join(cmd))
     with subprocess.Popen(cmd, cwd=cwd, encoding="utf-8") as p:
         try:
-            for line in p.stdout:
+            for line in (p.stdout or ()):
                 logging.debug(">>>>   %s", line.rstrip())
         except:
             p.kill()