[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/__init__.py

@@ -15,7 +15,7 @@
 from .server import PrometheusMetricsServer, start_metrics_server
 
 __all__ = [
-    "KERNEL_CURRENTLY_RUNNING_TOTAL", 
+    "KERNEL_CURRENTLY_RUNNING_TOTAL",
     "TERMINAL_CURRENTLY_RUNNING_TOTAL",
     "SERVER_INFO",
     "SERVER_EXTENSION_INFO",

jupyter_server/prometheus/server.py

@@ -26,7 +26,6 @@
 import prometheus_client
 import tornado.httpserver
 import tornado.ioloop
-import prometheus_client
 
 from jupyter_server._version import __version__
 from jupyter_server.base.handlers import PrometheusMetricsHandler

jupyter_server/serverapp.py

@@ -3125,7 +3125,7 @@ def start_app(self) -> None:
         if self.identity_provider.token and self.identity_provider.token_generated:
             # log full URL with generated token, so there's a copy/pasteable link
             # with auth info.
-            
+
             # Determine metrics URL based on whether separate metrics server is running
             if self.metrics_port:
                 # Separate metrics server is running
@@ -3136,12 +3136,12 @@ def start_app(self) -> None:
             else:
                 # Metrics are served on main server
                 # Use the connection_url as base and append /metrics
-                base_url = self.connection_url.rstrip('/')
+                base_url = self.connection_url.rstrip("/")
                 if self.authenticate_prometheus:
                     metrics_url = f"{base_url}/metrics?token={self.identity_provider.token}"
                 else:
                     metrics_url = f"{base_url}/metrics"
-            
+
             if self.sock:
                 self.log.critical(
                     "\n".join(