Increase join concat performance (#2291)

2021-10-29 12:55:09 +03:00
parent a361b345ad
commit 36e6a6c506
1 changed files with 1 additions and 1 deletions
--- a/sanic/server/protocols/websocket_protocol.py
+++ b/sanic/server/protocols/websocket_protocol.py
@@ -138,7 +138,7 @@ class WebSocketProtocol(HttpProtocol):
            ).encode()
            rbody = bytearray(first_line)
            rbody += (
-                "".join(f"{k}: {v}\r\n" for k, v in resp.headers.items())
+                "".join([f"{k}: {v}\r\n" for k, v in resp.headers.items()])
            ).encode()
            rbody += b"\r\n"
            if resp.body is not None: