[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

jupyter_server/prometheus/server.py

@@ -234,7 +234,7 @@ def stop(self) -> None:
             self.http_server.stop()
             self.http_server = None
 
-        if hasattr(self, 'ioloop') and self.ioloop:
+        if hasattr(self, "ioloop") and self.ioloop:
             # Stop the IOLoop
             self.ioloop.add_callback(self.ioloop.stop)
             self.ioloop = None
@@ -243,7 +243,9 @@ def stop(self) -> None:
             # Wait for thread to finish (with timeout)
             self.thread.join(timeout=1.0)
 
-        self.server_app.log.info(f"Metrics server stopped on port {getattr(self, 'port', 'unknown')}")
+        self.server_app.log.info(
+            f"Metrics server stopped on port {getattr(self, 'port', 'unknown')}"
+        )
 
 
 def start_metrics_server(server_app, port: int) -> PrometheusMetricsServer:

jupyter_server/serverapp.py

@@ -3243,7 +3243,7 @@ async def _cleanup(self) -> None:
             self.http_server.stop()
         if hasattr(self, "metrics_server"):
             # Stop the metrics server if it's running
-            if self.metrics_server is not None and hasattr(self.metrics_server, 'stop'):
+            if self.metrics_server is not None and hasattr(self.metrics_server, "stop"):
                 self.metrics_server.stop()
 
     def start_ioloop(self) -> None: