diff --git a/src/python/cutter_ipykernel.py b/src/python/cutter_ipykernel.py
index c8cdffba..89f4f572 100644
--- a/src/python/cutter_ipykernel.py
+++ b/src/python/cutter_ipykernel.py
@@ -50,11 +50,9 @@ class CutterIPythonKernel(IPythonKernel):
 
     def pre_handler_hook(self):
         self.interruptable = True
-        pass
 
     def post_handler_hook(self):
         self.interruptable = False
-        pass
 
 
 class CutterIPKernelApp(IPKernelApp):
diff --git a/src/python/cutter_jupyter.py b/src/python/cutter_jupyter.py
index 41a5a7c8..e4208a1b 100644
--- a/src/python/cutter_jupyter.py
+++ b/src/python/cutter_jupyter.py
@@ -31,7 +31,6 @@ class IPyKernelInterfaceJupyter:
             if self.poll() is not None:
                 return
             time.sleep(0.1)
-        pass
 
 
 class CutterInternalIPyKernelManager(IOLoopKernelManager):