From 03a75ee4b3869e289509e71b966b40ff1dd67591 Mon Sep 17 00:00:00 2001
From: Mateusz Jakub Fila <37295697+m-fila@users.noreply.github.com>
Date: Wed, 18 Sep 2024 20:17:42 +0200
Subject: [PATCH] fix printout when not built with data source (#679)

---
 python/podio/data_source.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/python/podio/data_source.py b/python/podio/data_source.py
index cead7b890..157c94781 100644
--- a/python/podio/data_source.py
+++ b/python/podio/data_source.py
@@ -2,7 +2,10 @@
 
 from ROOT import gSystem
 
-if gSystem.Load("libpodioDataSourceDict") < 0:
+if (
+    not gSystem.DynamicPathName("libpodioDataSourceDict", True)
+    or gSystem.Load("libpodioDataSourceDict") < 0
+):
     raise ImportError("Error when loading libpodioDataSourceDict")
 
 from ROOT import podio  # pylint: disable=wrong-import-position