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

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ipykernel/kernelapp.py

@@ -5,7 +5,6 @@
 
 import atexit
 import errno
-import json
 import logging
 import os
 import signal
@@ -25,7 +24,7 @@
 )
 from IPython.core.profiledir import ProfileDir
 from IPython.core.shellapp import InteractiveShellApp, shell_aliases, shell_flags
-from jupyter_client import write_connection_file, get_connection_info
+from jupyter_client import get_connection_info, write_connection_file
 from jupyter_client.connect import ConnectionFileMixin
 from jupyter_client.session import Session, session_aliases, session_flags
 from jupyter_core.paths import jupyter_runtime_dir

ipykernel/tests/test_kernelapp.py

@@ -4,10 +4,9 @@
 from unittest.mock import patch
 
 import pytest
+from jupyter_core.paths import secure_write
 
-from ipykernel import connect
 from ipykernel.kernelapp import IPKernelApp
-from jupyter_core.paths import secure_write
 
 from .conftest import MockKernel
 
@@ -64,7 +63,7 @@ def test_merge_connection_file():
             "control_port": 5,
             "key": "abc123",
             "signature_scheme": "hmac-sha256",
-            "kernel_name": "My Kernel"
+            "kernel_name": "My Kernel",
         }
         # We cannot use connect.write_connection_file since
         # it replaces port number 0 with a random port
@@ -102,6 +101,7 @@ def test_merge_connection_file():
         app.cleanup_connection_file()
         app.close()
 
+
 @pytest.mark.skipif(trio is None, reason="requires trio")
 def test_trio_loop():
     app = IPKernelApp(trio_loop=True)