move SearchDescription building into tokens

[nominatim.git] / nominatim / config.py

diff --git a/nominatim/config.py b/nominatim/config.py
index 72aaf0bd6b436ed78322f39ccec34feb560d542d..a8436440b9f5ca78670ba9fe9e1cc8e3979ece96 100644 (file)
--- a/nominatim/config.py
+++ b/nominatim/config.py
@@ -68,9 +68,9 @@ class Configuration:
         """
         try:
             return int(self.__getattr__(name))
-        except ValueError:
+        except ValueError as exp:
             LOG.fatal("Invalid setting NOMINATIM_%s. Needs to be a number.", name)
-            raise UsageError("Configuration error.")
+            raise UsageError("Configuration error.") from exp
 
 
     def get_libpq_dsn(self):