misc whitespace and line too long

Just to please flake8

Part of the ipython#717 PR-group.

examples/embedding/ipkernel_qtapp.py

@@ -65,7 +65,7 @@ def add_widgets(self):
 #-----------------------------------------------------------------------------
 
 if __name__ == "__main__":
-    app = Qt.QApplication([]) 
+    app = Qt.QApplication([])
     # Create our window
     win = SimpleWindow(app)
     win.show()

examples/embedding/ipkernel_wxapp.py

@@ -42,7 +42,7 @@ def __init__(self, parent, title):
         # Create the menubar
         menuBar = wx.MenuBar()
 
-        # and a menu 
+        # and a menu
         menu = wx.Menu()
 
         # add an item to the menu, using \tKeyName automatically

ipykernel/_eventloop_macos.py

@@ -150,4 +150,3 @@ def mainloop(duration=1):
         # Run the loop manually in this case,
         # since there may be events still to process (ipython/ipython#9734)
         CoreFoundation.CFRunLoopRun()
-

ipykernel/debugger.py

@@ -330,9 +330,15 @@ async def stackTrace(self, message):
         # or only the frames from the notebook.
         # We want to remove all the frames from ipykernel when they are present.
         try:
-            sf_list = reply['body']['stackFrames']
-            module_idx = len(sf_list) - next(i for i, v in enumerate(reversed(sf_list), 1) if v['name'] == '<module>' and i != 1)
-            reply['body']['stackFrames'] = reply['body']['stackFrames'][:module_idx+1]
+            sf_list = reply["body"]["stackFrames"]
+            module_idx = len(sf_list) - next(
+                i
+                for i, v in enumerate(reversed(sf_list), 1)
+                if v["name"] == "<module>" and i != 1
+            )
+            reply["body"]["stackFrames"] = reply["body"]["stackFrames"][
+                : module_idx + 1
+            ]
         except StopIteration:
             pass
         return reply
@@ -478,4 +484,3 @@ async def process_request(self, message):
             self.log.info('The debugger has stopped')
 
         return reply
-

ipykernel/eventloops.py

@@ -151,7 +151,7 @@ def loop_wx(kernel):
 
     import wx
 
-     # Wx uses milliseconds
+    # Wx uses milliseconds
     poll_interval = int(1000 * kernel._poll_interval)
 
     def wake():

ipykernel/ipkernel.py

@@ -26,7 +26,10 @@
     _asyncio_runner = None
 
 try:
-    from IPython.core.completer import rectify_completions as _rectify_completions, provisionalcompleter as _provisionalcompleter
+    from IPython.core.completer import (
+        rectify_completions as _rectify_completions,
+        provisionalcompleter as _provisionalcompleter,
+    )
     _use_experimental_60_completion = True
 except ImportError:
     _use_experimental_60_completion = False
@@ -195,9 +198,12 @@ def finish_metadata(self, parent, metadata, reply_content):
         """
         # FIXME: remove deprecated ipyparallel-specific code
         # This is required by ipyparallel < 5.0
-        metadata['status'] = reply_content['status']
-        if reply_content['status'] == 'error' and reply_content['ename'] == 'UnmetDependency':
-                metadata['dependencies_met'] = False
+        metadata["status"] = reply_content["status"]
+        if (
+            reply_content["status"] == "error"
+            and reply_content["ename"] == "UnmetDependency"
+        ):
+            metadata["dependencies_met"] = False
 
         return metadata
 
@@ -309,7 +315,11 @@ async def run_cell(*args, **kwargs):
                 _asyncio_runner
                 and shell.loop_runner is _asyncio_runner
                 and asyncio.get_event_loop().is_running()
-                and should_run_async(code, transformed_cell=transformed_cell, preprocessing_exc_tuple=preprocessing_exc_tuple)
+                and should_run_async(
+                    code,
+                    transformed_cell=transformed_cell,
+                    preprocessing_exc_tuple=preprocessing_exc_tuple,
+                )
             ):
                 coro = run_cell(
                     code,

ipykernel/tests/test_kernelspec.py

@@ -165,4 +165,3 @@ def test_install_env(tmp_path, env):
             assert spec['env'][k] == v
     else:
         assert 'env' not in spec
-

ipykernel/zmqshell.py

@@ -524,7 +524,7 @@ def ask_exit(self):
         payload = dict(
             source='ask_exit',
             keepkernel=self.keepkernel_on_exit,
-            )
+        )
         self.payload_manager.write_payload(payload)
 
     def run_cell(self, *args, **kwargs):