Merge branch 'main' into gergo/objects_init

src/specklepy/transports/server/server.py

@@ -73,7 +73,7 @@ class ServerTransport(AbstractTransport):
                 warn(
                     SpeckleWarning(
                         "Unauthenticated Speckle Client provided to Server Transport"
-                        f" for {self.url}. Receiving from private streams will fail."
+                        f" for {url}. Receiving from private streams will fail."
                     )
                 )
             else:
@@ -84,13 +84,17 @@ class ServerTransport(AbstractTransport):
         self.stream_id = stream_id
         self.url = url
 
+        self.session = requests.Session()
+
+        if self.account is not None:
             self._batch_sender = BatchSender(
                 self.url, self.stream_id, self.account.token, max_batch_size_mb=1
             )
-
-        self.session = requests.Session()
             self.session.headers.update(
-            {"Authorization": f"Bearer {self.account.token}", "Accept": "text/plain"}
+                {
+                    "Authorization": f"Bearer {self.account.token}",
+                    "Accept": "text/plain",
+                }
             )
 
     @property