From d5bef9efb514046050f6e08b70bbed7247a1a62f Mon Sep 17 00:00:00 2001
From: Adriaan de Groot <groot@kde.org>
Date: Mon, 15 Nov 2021 21:48:17 +0100
Subject: [PATCH] Python: document which exception is thrown on process failure

---
 src/modules/README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/modules/README.md b/src/modules/README.md
index 683ca9bc3..7b4d4b3a3 100644
--- a/src/modules/README.md
+++ b/src/modules/README.md
@@ -398,7 +398,9 @@ target_env_process_output(["ls"])
 ```
 
 The functions return 0. If the exit code of *command* is not 0, an exception
-is raised instead of returning 0.
+is raised instead of returning 0. The exception is `subprocess.CalledProcessError`
+(as if the *subprocess* module had been used), and the `returncode` member
+of the exception object can be used to determine the exit code.
 
 Parameter *stdin* may be a string which is fed to the command as standard input.
 The *timeout* is in seconds, with 0 (or a negative number) treated as no-timeout.