From 2134c5815a91f1821c9e14887f9b65ffff04fb19 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Antoine=20Marcus=20Dupr=C3=A9?=
 <marc-antoine.dupre@makina-corpus.com>
Date: Thu, 19 Jan 2023 11:53:22 +0100
Subject: [PATCH] Fix: `filter_difficulty` now handles when trek has no
 difficulty value

---
 geotrek/trekking/parsers.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/geotrek/trekking/parsers.py b/geotrek/trekking/parsers.py
index 0e93821ca6..78cb050a91 100644
--- a/geotrek/trekking/parsers.py
+++ b/geotrek/trekking/parsers.py
@@ -667,6 +667,7 @@ def filter_source(self, src, val):
 
     def filter_difficulty(self, src, val):
         types_clientele = val
+        difficulty_level = None
         for tc in types_clientele:
             if tc['id'] in self.types_clientele_ids_as_difficulty_levels:
                 difficulty_level = tc