# Kernel not working

**URL:** <https://discourse.jupyter.org/t/kernel-not-working/6772>\
**Category:** JupyterLab\
**Tags:** help-wanted\
**Created:** [November 16, 2020, 10:28am UTC](https://discourse.jupyter.org/t/kernel-not-working/6772 "2020-11-16T10:28:54Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Mattwpc](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.jupyter.org/mattwpc/32/3054_2.png) [@Mattwpc](https://discourse.jupyter.org/u/Mattwpc)\
**Post date:** [November 16, 2020, 10:28am UTC](https://discourse.jupyter.org/t/kernel-not-working/6772/1 "2020-11-16T10:28:54Z")

</div>

Hello all,

I just bought a new laptop with windows 10, and am having trouble running jupyter lab. Im using powershell to open and use jupyter lab.

The main issue is that it can’t start the kernel. I was looking over the powershell and looking for errors, and I found this:

" import win32api  
ModuleNotFoundError: No module named ‘win32api’ "

Below is what powershell returns once I try to open jupyter and select python3 Kernel.

[W 11:25:14.790 LabApp] Terminals not available (error was No module named ‘winpty.cywinpty’)  
[I 11:25:14.812 LabApp] JupyterLab extension loaded from c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\jupyterlab  
[I 11:25:14.812 LabApp] JupyterLab application directory is c:\users\lenovo\appdata\local\programs\python\python39\share\jupyter\lab  
[I 11:25:14.914 LabApp] Serving notebooks from local directory: C:\Users\Lenovo  
[I 11:25:14.914 LabApp] Jupyter Notebook 6.1.5 is running at:  
/?token=568bb974134d3c350a34c512fb1a720c971876724bf9375a  
[I 11:25:14.915 LabApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).  
[C 11:25:14.931 LabApp]

```
To access the notebook, open this file in a browser:
    file:///C:/Users/Lenovo/AppData/Roaming/jupyter/runtime/nbserver-19720-open.html
Or copy and paste one of these URLs:
    http://localhost:8888/?token=568bb974134d3c350a34c512fb1a720c971876724bf9375a
 or http://127.0.0.1:8888/?token=568bb974134d3c350a34c512fb1a720c971876724bf9375a

```

[W 11:25:17.648 LabApp] Could not determine jupyterlab build status without nodejs  
[E 11:25:20.119 LabApp] Uncaught exception POST /api/sessions?1605522320059 (::1)  
HTTPServerRequest(protocol=‘http’, host=‘localhost:8888’, method=‘POST’, uri=’/api/sessions?1605522320059’, version=‘HTTP/1.1’, remote\_ip=’::1’)  
Traceback (most recent call last):  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\tornado-6.1-py3.9-win-amd64.egg\tornado\web.py”, line 1704, in \_execute  
result = await result  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\tornado-6.1-py3.9-win-amd64.egg\tornado\gen.py”, line 769, in run  
yielded = self.gen.throw(\*exc\_info) # type: ignore  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\notebook-6.1.5-py3.9.egg\notebook\services\sessions\handlers.py”, line 69, in post  
model = yield maybe\_future(  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\tornado-6.1-py3.9-win-amd64.egg\tornado\gen.py”, line 762, in run  
value = future.result()  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\tornado-6.1-py3.9-win-amd64.egg\tornado\gen.py”, line 769, in run  
yielded = self.gen.throw(_exc\_info) # type: ignore  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\notebook-6.1.5-py3.9.egg\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\lenovo\appdata\local\programs\python\python39\lib\site-packages\tornado-6.1-py3.9-win-amd64.egg\tornado\gen.py”, line 762, in run  
value = future.result()  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\tornado-6.1-py3.9-win-amd64.egg\tornado\gen.py”, line 769, in run  
yielded = self.gen.throw(exc\_info) # type: ignore  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\notebook-6.1.5-py3.9.egg\notebook\services\sessions\sessionmanager.py”, line 100, in start\_kernel\_for\_session  
kernel\_id = yield maybe\_future(  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\tornado-6.1-py3.9-win-amd64.egg\tornado\gen.py”, line 762, in run  
value = future.result()  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\notebook-6.1.5-py3.9.egg\notebook\services\kernels\kernelmanager.py”, line 176, in start\_kernel  
kernel\_id = await maybe\_future(self.pinned\_superclass.start\_kernel(self, \*\*kwargs))  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\jupyter\_client-6.1.7-py3.9.egg\jupyter\_client\multikernelmanager.py”, line 185, in start\_kernel  
km.start\_kernel(\*\*kwargs)  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\jupyter\_client-6.1.7-py3.9.egg\jupyter\_client\manager.py”, line 309, in start\_kernel  
kernel\_cmd, kw = self.pre\_start\_kernel(\*\*kw)  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\jupyter\_client-6.1.7-py3.9.egg\jupyter\_client\manager.py”, line 256, in pre\_start\_kernel  
self.write\_connection\_file()  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\jupyter\_client-6.1.7-py3.9.egg\jupyter\_client\connect.py”, line 468, in write\_connection\_file  
self.connection\_file, cfg = write\_connection\_file(self.connection\_file,  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\jupyter\_client-6.1.7-py3.9.egg\jupyter\_client\connect.py”, line 138, in write\_connection\_file  
with secure\_write(fname) as f:  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\contextlib.py”, line 117, in **enter**  
return next(self.gen)  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\jupyter\_core-4.7.0rc0-py3.9.egg\jupyter\_core\paths.py”, line 461, in secure\_write  
win32\_restrict\_file\_to\_user(fname)  
File “c:\users\lenovo\appdata\local\programs\python\python39\lib\site-packages\jupyter\_core-4.7.0rc0-py3.9.egg\jupyter\_core\paths.py”, line 387, in win32\_restrict\_file\_to\_user  
import win32api  
ModuleNotFoundError: No module named ‘win32api’  
[W 11:25:20.123 LabApp] Unhandled error  
[E 11:25:20.129 LabApp] {  
“Origin”: “[http://localhost:8888](http://localhost:8888)”,  
“Referer”: “[http://localhost:8888/lab](http://localhost:8888/lab)”,  
“User-Agent”: “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.18362”,  
“Accept”: "/_",  
“Accept-Language”: “es-ES,es;q=0.5”,  
“Authorization”: “token 568bb974134d3c350a34c512fb1a720c971876724bf9375a”,  
“Content-Type”: “text/plain;charset=UTF-8”,  
“X-Xsrftoken”: “2|ee9df712|abac607c6bd89b0a8b08c2f9d3e11790|1605516335”,  
“Accept-Encoding”: “gzip, deflate”,  
“Host”: “localhost:8888”,  
“Content-Length”: “117”,  
“Connection”: “Keep-Alive”,  
“Cache-Control”: “no-cache”,  
“Cookie”: "\_xsrf=2|ee9df712|abac607c6bd89b0a8b08c2f9d3e11790|1605516335; username-localhost-8888=“2|1:0|10:1605522318|23:username-localhost-8888|44:MGQ1ZjMzNmQ5MTI3NDBhNjgzYWE2MWQ1MjAxMTczOGE=|e59bfa672e0eeb676424faf9ffbe2ad948589aeec5c19643d9256d4bbb0c4f35"”  
}  
[E 11:25:20.130 LabApp] 500 POST /api/sessions?1605522320059 (::1) 58.47ms referer=http://localhost:8888/lab

If anyone has any tips or knows what the problem is, please do tell!