From 02a687a05e3ec9aa09781682618ac737e3310c5c Mon Sep 17 00:00:00 2001
From: tmadlener <thomas.madlener@desy.de>
Date: Wed, 14 Feb 2024 14:41:48 +0100
Subject: [PATCH] Make debugging a bit easier

---
 k4FWCore/python/k4FWCore/utils.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/k4FWCore/python/k4FWCore/utils.py b/k4FWCore/python/k4FWCore/utils.py
index 2acc60a9..d7f07c53 100644
--- a/k4FWCore/python/k4FWCore/utils.py
+++ b/k4FWCore/python/k4FWCore/utils.py
@@ -57,6 +57,9 @@ def import_from(
 
     """
     filename = os.path.abspath(filename)
+    if not os.path.exists(filename):
+        raise FileNotFoundError(f"No such file: '{filename}'")
+
     module_name = module_name or os.path.basename(filename).replace(".", "_")
     loader = SourceFileLoader(module_name, filename)
     spec = importlib.util.spec_from_loader(loader.name, loader)