problème dans l'encodage de l'url

src/agenda_culturel/models.py

@@ -999,9 +999,15 @@ class Event(models.Model):
     def download_image(self):
         # first download file
 
+        if str(self.image) != '':
             a = urlparse(self.image)
             basename = os.path.basename(a.path)
 
+            try:
+                basename = basename.decode()
+            except:
+                pass
+
             ext = basename.split('.')[-1]
             filename = "%s.%s" % (uuid.uuid4(), ext)