jupyter / jupyter/notebook

Kernel Error in Jupyter Notebook in Python 3

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Jupyter Notebook
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Description

Hi, I am new to Jupyter Notebook, I tried to launch Jupyter Notebook from Anaconda Navigator. But , I get Kernel Error. Please advise how to fix the below issue

Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\lib\site-packages\tornado\web.py", line 1699, in _execute
result = await result
File "C:\ProgramData\Anaconda3\lib\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "C:\ProgramData\Anaconda3\lib\site-packages\notebook\services\sessions\handlers.py", line 72, in post
type=mtype))
File "C:\ProgramData\Anaconda3\lib\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "C:\ProgramData\Anaconda3\lib\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "C:\ProgramData\Anaconda3\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 88, in create_session
kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
File "C:\ProgramData\Anaconda3\lib\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "C:\ProgramData\Anaconda3\lib\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "C:\ProgramData\Anaconda3\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 101, in start_kernel_for_session
self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
File "C:\ProgramData\Anaconda3\lib\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "C:\ProgramData\Anaconda3\lib\site-packages\tornado\gen.py", line 209, in wrapper
yielded = next(result)
File "C:\ProgramData\Anaconda3\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 168, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "C:\ProgramData\Anaconda3\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "C:\ProgramData\Anaconda3\lib\site-packages\jupyter_client\manager.py", line 240, in start_kernel
self.write_connection_file()
File "C:\ProgramData\Anaconda3\lib\site-packages\jupyter_client\connect.py", line 547, in write_connection_file
sock = self.context.socket(socket_type)
File "C:\ProgramData\Anaconda3\lib\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
else:
File "C:\ProgramData\Anaconda3\lib\contextlib.py", line 112, in __enter__
return next(self.gen)
File "C:\ProgramData\Anaconda3\lib\site-packages\jupyter_client\connect.py", line 102, in secure_write
sock.bind((ip, 0))
PermissionError: [Errno 13] Permission denied: 'C:\\Users\\Bikash\\AppData\\Roaming\\jupyter\\runtime\\kernel-93b84ff4-7406-4874-acd7-598dec546585.json'

Contributor guide

Open the contributing guide

Research direction

Start by reviewing the traceback through notebook/services/sessions/sessionmanager.py, notebook/services/kernels/kernelmanager.py, and jupyter_client/connect.py, focusing on the reported PermissionError for the runtime connection file. Reproduce the kernel launch failure in the stated Windows and Anaconda setup; done means the notebook starts its Python kernel without this error.

Written by the indexing model from the issue text.

Assessment

Tech stack
anaconda, jupyter-notebook, python
Domain
devtools, operating-systems
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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