Kernel error in jupyter notebook

[Khushu06]

    km.start_kernel(**kwargs)
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\manager.py", line 240, in start_kernel
    self.write_connection_file()
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 547, in write_connection_file
    kernel_name=self.kernel_name
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
    with secure_write(fname) as f:
  File "C:\Users\Khushboo.Girotra\anaconda3\lib\contextlib.py", line 112, in __enter__
    return next(self.gen)
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 100, in secure_write
    win32_restrict_file_to_user(fname)
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 53, in win32_restrict_file_to_user
    import win32api
ImportError: DLL load failed: The specified procedure could not be found.``` 

I have re-install the anaconda as well . but still It is showing the same kernel error.
 Kernel json file shows :
{
 "argv": [
  "C:\\Users\\Khushboo.Girotra\\python.exe",
  "-m",
  "ipykernel_launcher",
  "-f",
  "{connection_file}"
 ],
 "display_name": "Python 3",
 "language": "python"
} 

I have tried lot of solution which are already there but nothing works out . Kindly help

[Khushu06]

Kindly respond

[kevin-bates]

You might want to be sure the latest version (5.3.3) of jupyter_client is fully installed. Looks like this portion of its setup.py didn't run pywin32 >=1.0 ; sys_platform == 'win32'.

[Khushu06]

It's 5.3.3 version only but there is no file = setup.py under jupyter _client. Kindle elaborate

[Khushu06]

jupyter core : 4.5.0
jupyter-notebook : 6.0.1
qtconsole : 4.5.5
ipython : 7.8.0
ipykernel : 5.1.2
jupyter client : 5.3.3
jupyter lab : 1.1.3
nbconvert : 5.6.0
ipywidgets : 7.5.1
nbformat : 4.4.0
traitlets : 4.3.2

[kevin-bates]

I'm referring to the setup.py that's in the repository: https://github.com/jupyter/jupyter_client/blob/5.3.3/setup.py
This file isn't laid down during installation but it's what is used during jupyter_client's installation.

You might try pip install --upgrade jupyter_client. You should have pywin32 installed.

[Khushu06]

I have installed anaconda , under that jupyter notebook also get installed .
I have 5.3.3 version and pywin32 is installed . Still there is kernel error.

[kevin-bates]

I have 5.3.3 version and pywin32 is installed . Still there is kernel error.

Is the kernel failure still due to a DLL load failure - or something different now?
ImportError: DLL load failed: The specified procedure could not be found.

[Khushu06]

It's a same error of DLL load failed

[Khushu06]

       file:///C:/Users/Khushboo.Girotra/AppData/Roaming/jupyter/runtime/nbserver-13148-open.html
   Or copy and paste one of these URLs:
       http://localhost:8888/?token=ecaf07a435edebf1a26c758893d1dac7c4996693520529ff
    or http://127.0.0.1:8888/?token=ecaf07a435edebf1a26c758893d1dac7c4996693520529ff
[W 22:08:54.472 NotebookApp] Notebook Documents/Analytics bootcamp/python_decision_trees/decision_trees/decision_trees.ipynb is not trusted
[E 22:08:58.108 NotebookApp] Uncaught exception POST /api/sessions (::1)
   HTTPServerRequest(protocol='http', host='localhost:8888', method='POST', uri='/api/sessions', version='HTTP/1.1', remote_ip='::1')
   Traceback (most recent call last):
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\tornado\web.py", line 1699, in _execute
       result = await result
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run
       yielded = self.gen.throw(*exc_info)  # type: ignore
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\notebook\services\sessions\handlers.py", line 72, in post
       type=mtype))
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run
       value = future.result()
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run
       yielded = self.gen.throw(*exc_info)  # type: ignore
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\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:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run
       value = future.result()
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run
       yielded = self.gen.throw(*exc_info)  # type: ignore
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\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:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run
       value = future.result()
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 209, in wrapper
       yielded = next(result)
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\notebook\services\kernels\kernelmanager.py", line 168, in start_kernel
       super(MappingKernelManager, self).start_kernel(**kwargs)
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
       km.start_kernel(**kwargs)
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\manager.py", line 240, in start_kernel
       self.write_connection_file()
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 547, in write_connection_file
       kernel_name=self.kernel_name
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
       with secure_write(fname) as f:
     File "C:\Users\Khushboo.Girotra\anaconda3\lib\contextlib.py", line 112, in __enter__
       return next(self.gen)
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 100, in secure_write
       win32_restrict_file_to_user(fname)
     File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 53, in win32_restrict_file_to_user
       import win32api
   ImportError: DLL load failed: The specified procedure could not be found.
[W 22:08:58.140 NotebookApp] Unhandled error
[E 22:08:58.140 NotebookApp] {
     "Content-Type": "application/json",
     "Accept": "application/json, text/javascript, */*; q=0.01",
     "X-Xsrftoken": "2|272e5111|35d3dd9abc94bc322626eb0226eb4688|1568606969",
     "X-Requested-With": "XMLHttpRequest",
     "Referer": "http://localhost:8888/notebooks/Documents/Analytics%20bootcamp/python_decision_trees/decision_trees/decision_trees.ipynb",
     "Accept-Language": "en-IN",
     "Accept-Encoding": "gzip, deflate",
     "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko",
     "Host": "localhost:8888",
     "Content-Length": "163",
     "Connection": "Keep-Alive",
     "Cache-Control": "no-cache",
     "Cookie": "_xsrf=2|272e5111|35d3dd9abc94bc322626eb0226eb4688|1568606969; username-localhost-8890=\"2|1:0|10:1569241500|23:username-localhost-8890|44:NjhmYTcwN2UyOWU3NGZkN2EzNDg2NWNkYWRiYjAwM2M=|2dd0b3cbedd7aec9ddb5a5487f6431906a442b75380dd0587e1d1b3e9f5f7475\"; username-localhost-8889=\"2|1:0|10:1569253558|23:username-localhost-8889|44:Mjg4OTcwZjIyMzJiNDkzMDkwZmVhZGY1Mzk2MGIwMGQ=|16708bbdcf21858ebb05eb126eea8fd1d1d23a770dd78f4c00427469bfa17d3c\"; username-localhost-8888=\"2|1:0|10:1569256712|23:username-localhost-8888|44:YjZkM2JjZDAwZmEyNDllMWI0NThhNzg0OTQ1YTRjM2M=|4d33dac2a071434c20d5ed0e0320c827950ec822c40925d68aa42b936e1e39e7\""
   }
[E 22:08:58.155 NotebookApp] 500 POST /api/sessions (::1) 312.31ms referer=http://localhost:8888/notebooks/Documents/Analytics%20bootcamp/python_decision_trees/decision_trees/decision_trees.ipynb```

[kevin-bates]

Thanks for the update. You'll need to figure out why import win32api is not working. There are a number of SO hits on this issue, some of which state that pip install pypiwin32 resolved the issue. I don't have access to a windows machine, so can't really help much more than this - sorry.

[Khushu06]

Thanks for giving me the directions !

[Khushu06]

Now it shows me the error of dead kernel. Kindly help on this

[I 10:33:32.182 NotebookApp] Loading IPython parallel extension
[I 10:33:32.292 NotebookApp] JupyterLab extension loaded from C:\Users\Khushboo.Girotra\anaconda3\lib\site-packages\jupyterlab
[I 10:33:32.292 NotebookApp] JupyterLab application directory is C:\Users\Khushboo.Girotra\anaconda3\share\jupyter\lab
[I 10:33:32.297 NotebookApp] Serving notebooks from local directory: C:\Users\Khushboo.Girotra
[I 10:33:32.298 NotebookApp] The Jupyter Notebook is running at:
[I 10:33:32.299 NotebookApp] http://localhost:8888/?token=8e24cc355a607b399fedca623643ddf1b2ebb428f69c39bc
[I 10:33:32.300 NotebookApp]  or http://127.0.0.1:8888/?token=8e24cc355a607b399fedca623643ddf1b2ebb428f69c39bc
[I 10:33:32.301 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 10:33:32.755 NotebookApp]

    To access the notebook, open this file in a browser:
        file:///C:/Users/Khushboo.Girotra/AppData/Roaming/jupyter/runtime/nbserver-8844-open.html
    Or copy and paste one of these URLs:
        http://localhost:8888/?token=8e24cc355a607b399fedca623643ddf1b2ebb428f69c39bc
     or http://127.0.0.1:8888/?token=8e24cc355a607b399fedca623643ddf1b2ebb428f69c39bc
[W 10:33:50.064 NotebookApp] Notebook Documents/Analytics bootcamp/python_decision_trees/decision_trees/decision_trees.ipynb is not trusted
[I 10:33:53.885 NotebookApp] Kernel started: a869e91b-d19d-478e-b2a7-6fda11ce89f5
Traceback (most recent call last):
  File "C:\Users\Khushboo.Girotra\lib\runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "C:\Users\Khushboo.Girotra\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\ipykernel_launcher.py", line 16, in <module>
    app.launch_new_instance()
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\traitlets\config\application.py", line 657, in launch_instance
    app.initialize(argv)
  File "<C:\Users\Khushboo.Girotra\lib\site-packages\decorator.py:decorator-gen-125>", line 2, in initialize
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\traitlets\config\application.py", line 87, in catch_config_error
    return method(app, *args, **kwargs)
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\ipykernel\kernelapp.py", line 530, in initialize
    self.write_connection_file()
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\ipykernel\kernelapp.py", line 227, in write_connection_file
    iopub_port=self.iopub_port, control_port=self.control_port)
  File "C:\Users\Khushboo.Girotra\lib\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
    with secure_write(fname) as f:
  File "C:\Users\Khushboo.Girotra\lib\contextlib.py", line 112, in __enter__
    return next(self.gen)
  File "C:\Users\Khushboo.Girotra\lib\site-packages\jupyter_client\connect.py", line 100, in secure_write
    win32_restrict_file_to_user(fname)
  File "C:\Users\Khushboo.Girotra\lib\site-packages\jupyter_client\connect.py", line 53, in win32_restrict_file_to_user
    import win32api
ImportError: DLL load failed: The specified procedure could not be found.
[I 10:33:59.591 NotebookApp] KernelRestarter: restarting kernel (1/5), keep random ports
[IPKernelApp] ERROR | Failed to load connection file: 'C:\\Users\\Khushboo.Girotra\\AppData\\Roaming\\jupyter\\runtime\\kernel-a869e91b-d19d-478e-b2a7-6fda11ce89f5.json'
Traceback (most recent call last):
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\ipykernel\kernelapp.py", line 252, in init_connection_file
    self.load_connection_file()
  File "C:\Users\Khushboo.Girotra\lib\site-packages\jupyter_client\connect.py", line 569, in load_connection_file
    info = json.load(f)
  File "C:\Users\Khushboo.Girotra\lib\json\__init__.py", line 296, in load
    parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
  File "C:\Users\Khushboo.Girotra\lib\json\__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "C:\Users\Khushboo.Girotra\lib\json\decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Users\Khushboo.Girotra\lib\json\decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
[I 10:34:02.637 NotebookApp] KernelRestarter: restarting kernel (2/5), keep random ports
[IPKernelApp] ERROR | Failed to load connection file: 'C:\\Users\\Khushboo.Girotra\\AppData\\Roaming\\jupyter\\runtime\\kernel-a869e91b-d19d-478e-b2a7-6fda11ce89f5.json'
Traceback (most recent call last):
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\ipykernel\kernelapp.py", line 252, in init_connection_file
    self.load_connection_file()
  File "C:\Users\Khushboo.Girotra\lib\site-packages\jupyter_client\connect.py", line 569, in load_connection_file
    info = json.load(f)
  File "C:\Users\Khushboo.Girotra\lib\json\__init__.py", line 296, in load
    parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
  File "C:\Users\Khushboo.Girotra\lib\json\__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "C:\Users\Khushboo.Girotra\lib\json\decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Users\Khushboo.Girotra\lib\json\decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
[I 10:34:05.668 NotebookApp] KernelRestarter: restarting kernel (3/5), keep random ports
[IPKernelApp] ERROR | Failed to load connection file: 'C:\\Users\\Khushboo.Girotra\\AppData\\Roaming\\jupyter\\runtime\\kernel-a869e91b-d19d-478e-b2a7-6fda11ce89f5.json'
Traceback (most recent call last):
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\ipykernel\kernelapp.py", line 252, in init_connection_file
    self.load_connection_file()
  File "C:\Users\Khushboo.Girotra\lib\site-packages\jupyter_client\connect.py", line 569, in load_connection_file
    info = json.load(f)
  File "C:\Users\Khushboo.Girotra\lib\json\__init__.py", line 296, in load
    parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
  File "C:\Users\Khushboo.Girotra\lib\json\__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "C:\Users\Khushboo.Girotra\lib\json\decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Users\Khushboo.Girotra\lib\json\decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
[I 10:34:08.695 NotebookApp] KernelRestarter: restarting kernel (4/5), keep random ports
[IPKernelApp] ERROR | Failed to load connection file: 'C:\\Users\\Khushboo.Girotra\\AppData\\Roaming\\jupyter\\runtime\\kernel-a869e91b-d19d-478e-b2a7-6fda11ce89f5.json'
Traceback (most recent call last):
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\ipykernel\kernelapp.py", line 252, in init_connection_file
    self.load_connection_file()
  File "C:\Users\Khushboo.Girotra\lib\site-packages\jupyter_client\connect.py", line 569, in load_connection_file
    info = json.load(f)
  File "C:\Users\Khushboo.Girotra\lib\json\__init__.py", line 296, in load
    parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
  File "C:\Users\Khushboo.Girotra\lib\json\__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "C:\Users\Khushboo.Girotra\lib\json\decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Users\Khushboo.Girotra\lib\json\decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
[W 10:34:11.713 NotebookApp] KernelRestarter: restart failed
[W 10:34:11.714 NotebookApp] Kernel a869e91b-d19d-478e-b2a7-6fda11ce89f5 died, removing from map.
[W 10:34:54.178 NotebookApp] Timeout waiting for kernel_info reply from a869e91b-d19d-478e-b2a7-6fda11ce89f5
[E 10:34:54.181 NotebookApp] Error opening stream: HTTP 404: Not Found (Kernel does not exist: a869e91b-d19d-478e-b2a7-6fda11ce89f5)
[W 10:34:55.240 NotebookApp] 404 GET /api/kernels/a869e91b-d19d-478e-b2a7-6fda11ce89f5/channels?session_id=fe921aa3776f48e79b7232347f66318f (::1): Kernel does not exist: a869e91b-d19d-478e-b2a7-6fda11ce89f5
[W 10:34:55.286 NotebookApp] 404 GET /api/kernels/a869e91b-d19d-478e-b2a7-6fda11ce89f5/channels?session_id=fe921aa3776f48e79b7232347f66318f (::1) 46.89ms referer=None
[W 10:34:57.395 NotebookApp] Replacing stale connection: a869e91b-d19d-478e-b2a7-6fda11ce89f5:fe921aa3776f48e79b7232347f66318f```

[kevin-bates]

This is still the same issue, failed import of win32api. Did you try pip install pywin32 into the correct environment? Looks like you're hitting this issue: conda-forge/jupyter_client-feedstock#29 (so at least you're not alone 😄)

[Khushu06]

I have installed pywin32 , what does correct environment mean here?

[Khushu06]

How should I resolve it ? I tried a lot reading lot of stuffs on github and solving it, but nothing works out. Please help