From 1f7fc23ae0ef88baf685c77b7e760604e2d9382d Mon Sep 17 00:00:00 2001
From: Florian Schanda <florian.schanda@bmw.de>
Date: Tue, 20 Jun 2023 09:10:51 +0200
Subject: [PATCH] Improve error message for duplicate items

---
 lobster/io.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lobster/io.py b/lobster/io.py
index 7f5b5c9c..ccd77040 100644
--- a/lobster/io.py
+++ b/lobster/io.py
@@ -111,9 +111,10 @@ def lobster_read(mh, filename, level, items, source_info=None):
 
         if item.tag.key() in items:
             mh.error(item.location,
-                     "duplicate definition, "
+                     "duplicate definition of %s, "
                      "previously defined at %s" %
-                     items[item.tag.key()].location.to_string())
+                     (item.tag.key(),
+                      items[item.tag.key()].location.to_string()))
 
         if source_info is not None:
             item.perform_source_checks(source_info)