nit

nightosong · web-flow · commit 1de88550b0f1 · 2026-02-12T16:28:41.000+08:00
diff --git a/src/mcp/server/sse.py b/src/mcp/server/sse.py
@@ -186,7 +186,7 @@ async def response_wrapper(scope: Scope, receive: Receive, send: Send):
                 )
                 await read_stream_writer.aclose()
                 await write_stream_reader.aclose()
-                self._read_stream_writers.pop(session_id)
+                self._read_stream_writers.pop(session_id, None)
                 logging.debug(f"Client session disconnected {session_id}")
 
             logger.debug("Starting SSE response task")

Original file line number	Diff line number	Diff line change
`@@ -186,7 +186,7 @@ async def response_wrapper(scope: Scope, receive: Receive, send: Send):`
`186`	`186`	`)`
`187`	`187`	`await read_stream_writer.aclose()`
`188`	`188`	`await write_stream_reader.aclose()`
`189`		`- self._read_stream_writers.pop(session_id)`
	`189`	`+ self._read_stream_writers.pop(session_id, None)`
`190`	`190`	`logging.debug(f"Client session disconnected {session_id}")`
`191`	`191`
`192`	`192`	`logger.debug("Starting SSE response task")`