Accept 0 as a callback id (miguelgrinberg#1329)

dantetemplar · web-flow · commit e59351969241 · 2024-04-28T12:05:27.000+01:00
diff --git a/src/socketio/packet.py b/src/socketio/packet.py
@@ -185,6 +185,6 @@ def _to_dict(self):
             'data': self.data,
             'nsp': self.namespace,
         }
-        if self.id:
+        if self.id is not None:
             d['id'] = self.id
         return d
