added correct formating

Author: SOURABHMISHRA5221

src/mcp/server/sse.py

@@ -131,27 +131,26 @@ def __init__(self, endpoint: str, security_settings: TransportSecuritySettings |
         # Remove automatic leading slash enforcement to support proper URL joining
         # Store the endpoint as-is, allowing both "/messages/" and "messages/" formats
         self._endpoint = endpoint
-        
         self._read_stream_writers = {}
         self._security = TransportSecurityMiddleware(security_settings)
         logger.debug(f"SseServerTransport initialized with endpoint: {endpoint}")
 
     def _build_message_path(self, root_path: str) -> str:
         """
         Helper method to properly construct the message path
-        
+
         This method handles the path construction logic that was causing issues
         with urllib.parse.urljoin() when servers are proxied or mounted at subpaths.
-        
+
         Args:
             root_path: The root path from ASGI scope (e.g., "" or "/api_prefix")
-            
+
         Returns:
             The properly constructed path for client message posting
         """
         # Clean up the root path
         clean_root_path = root_path.rstrip("/")
-        
+
         # If endpoint starts with "/", it's meant to be absolute within the app
         # If endpoint doesn't start with "/", it's meant to be relative to root_path
         if self._endpoint.startswith("/"):
@@ -163,7 +162,7 @@ def _build_message_path(self, root_path: str) -> str:
                 full_path = clean_root_path + "/" + self._endpoint
             else:
                 full_path = "/" + self._endpoint
-                
+
         return full_path
 
     @asynccontextmanager
@@ -286,4 +285,4 @@ async def handle_post_message(self, scope: Scope, receive: Receive, send: Send)
         logger.debug(f"Sending session message to writer: {session_message}")
         response = Response("Accepted", status_code=202)
         await response(scope, receive, send)
-        await writer.send(session_message)
+        await writer.send(session_message)

tests/server/test_sse_security.py

@@ -299,26 +299,26 @@ async def test_endpoint_validation_rejects_absolute_urls():
     # These should all raise ValueError due to being absolute URLs or having invalid characters
     invalid_endpoints = [
         "http://example.com/messages/",
-        "https://example.com/messages/", 
+        "https://example.com/messages/",
         "//example.com/messages/",
         "/messages/?query=test",
         "/messages/#fragment",
     ]
-    
+
     for invalid_endpoint in invalid_endpoints:
         with pytest.raises(ValueError, match="is not a relative path"):
             SseServerTransport(invalid_endpoint)
-    
+
     # These should all be valid - endpoint is stored as-is (no automatic normalization)
     valid_endpoints_and_expected = [
         ("/messages/", "/messages/"),  # Absolute path format
-        ("messages/", "messages/"),    # Relative path format  
+        ("messages/", "messages/"),  # Relative path format
         ("/api/v1/messages/", "/api/v1/messages/"),
         ("api/v1/messages/", "api/v1/messages/"),
     ]
-    
+
     for valid_endpoint, expected_stored_value in valid_endpoints_and_expected:
         # Should not raise an exception
         transport = SseServerTransport(valid_endpoint)
         # Endpoint should be stored exactly as provided (no normalization)
-        assert transport._endpoint == expected_stored_value
+        assert transport._endpoint == expected_stored_value

tests/shared/test_sse.py

@@ -489,7 +489,7 @@ def test_sse_message_id_coercion():
     [
         # These should all be valid - endpoint is stored as-is (no automatic normalization)
         ("/messages/", "/messages/"),
-        ("messages/", "messages/"), 
+        ("messages/", "messages/"),
         ("/", "/"),
         # Invalid endpoints - should raise ValueError
         ("http://example.com/messages/", ValueError),