--- a/libervia/backend/tools/common/data_objects.py	Tue Jun 18 12:06:45 2024 +0200
+++ b/libervia/backend/tools/common/data_objects.py	Wed Jun 19 18:44:57 2024 +0200
@@ -55,12 +55,10 @@
                 if "url" not in attachment:
                     try:
                         attachment["url"] = next(
-                            s['url'] for s in attachment["sources"] if 'url' in s
+                            s["url"] for s in attachment["sources"] if "url" in s
                         )
                     except (StopIteration, KeyError):
-                        log.warning(
-                            f"An attachment has no URL: {attachment}"
-                        )
+                        log.warning(f"An attachment has no URL: {attachment}")
 
     @property
     def id(self):
@@ -126,7 +124,6 @@
         return self.extra.get("attachments", [])
 
 
-
 class Messages(object):
     def __init__(self, msgs_data):
         self.messages = [Message(m) for m in msgs_data]
@@ -166,7 +163,7 @@
     @property
     def avatar_basename(self):
         try:
-            return basename(self.data['avatar']['path'])
+            return basename(self.data["avatar"]["path"])
         except (TypeError, KeyError):
             return None