jupyter_client: win32security.GetFileSecurity kernel error in jupyter- lab v1.1.4 client v5.3.3

Description

Launching jupyter notebook v1.1.4 python3.7 from Anaconda3 throws kernel error on windows 8.1

Default installation of jupyterlab v1.0.2 compiled with Anaconda3 works fine and not prone to this error.

Also Mac seems not prone to this issue when testing it on Mac.

Traceback (most recent call last):
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\tornado\web.py", line 1699, in _execute
    result = await result
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\tornado\gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\notebook\services\sessions\handlers.py", line 72, in post
    type=mtype))
  File "C:\Users\sxxx\.conda\envs\logAna\lib\site-packages\tornado\gen.py", line 735, in run
    value = future.result()
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\tornado\gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "C:\Users\xxx\.conda\envs\logAna\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:\Users\xxx\.conda\envs\logAna\lib\site-packages\tornado\gen.py", line 735, in run
    value = future.result()
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\tornado\gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "C:\Users\xxx\.conda\envs\logAna\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:\Users\xxx\.conda\envs\logAna\lib\site-packages\tornado\gen.py", line 735, in run
    value = future.result()
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\tornado\gen.py", line 209, in wrapper
    yielded = next(result)
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 168, in start_kernel
    super(MappingKernelManager, self).start_kernel(**kwargs)
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
    km.start_kernel(**kwargs)
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\jupyter_client\manager.py", line 240, in start_kernel
    self.write_connection_file()
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\jupyter_client\connect.py", line 547, in write_connection_file
    kernel_name=self.kernel_name
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
    with secure_write(fname) as f:
  File "C:\Users\xxx\.conda\envs\logAna\lib\contextlib.py", line 112, in __enter__
    return next(self.gen)
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\jupyter_client\connect.py", line 100, in secure_write
    win32_restrict_file_to_user(fname)
  File "C:\Users\xxx\.conda\envs\logAna\lib\site-packages\jupyter_client\connect.py", line 61, in win32_restrict_file_to_user
    sd = win32security.GetFileSecurity(fname, win32security.DACL_SECURITY_INFORMATION)
pywintypes.error: (50, 'GetFileSecurity', 'The request is not supported.')

Reproduce

install Anaconda3 2019.07 64bit python3.7 for windows.
I use windows 8.1 Enterprise 64bit SP0
update jupyter or install a fresh one in a new environment
run jupyter lab and start a new python3 notebook, you get the kernel error in the top right corner.

At first instance jupyter was automatically updated when installing other Anaconda3 packages which seemed to cause the error. However, after testing lots of setups and finally installing jupyterlab on a fresh clean anaconda environment determined that the new version has got a bug running on windows 8.1 Enterprise 64bit SP0 at the least. I don’t know if other versions of windows are prone to this.

Expected behavior

create new python3.7 notebooks without any kernel errors.

Context

windows 8.1 Enterprise 64bit SP0
Chrome Version 73.0.3683.75 (Official Build) (64-bit)
JupyterLab version: v1.1.4

Troubleshoot Output

(base) C:\WINDOWS\system32>activate test

(test) C:\WINDOWS\system32>jupyter troubleshoot $PATH: C:\Users\xxx.conda\envs\test C:\Users\xxx.conda\envs\test\Library\mingw-w64\bin C:\Users\xxx.conda\envs\test\Library\usr\bin C:\Users\xxx.conda\envs\test\Library\bin C:\Users\xxx.conda\envs\test\Scripts C:\Users\xxx.conda\envs\test\bin C:\ProgramData\Anaconda3\condabin C:\oracle\Oracle11g\product\11.2.0\client_1\bin C:\Rtools\bin C:\ProgramData\Oracle\Java\javapath C:\WINDOWS\system32 C:\WINDOWS C:\WINDOWS\System32\Wbem C:\WINDOWS\System32\WindowsPowerShell\v1.0 C:\Program Files (x86)\ZANTAZ\EAS Outlook Addin C:\Program Files\Liquid Technologies\Liquid Studio 2018\XmlDataBinder16
Redist16\cpp\win32\bin C:\Program Files\Liquid Technologies\Liquid Studio 2018\XmlDataBinder16
Redist16\cpp\win64\bin C:\Program Files\PostgreSQL\11\bin C:\Program Files\SAS94\Secure\ccme4 C:\Program Files\SAS94\x86\Secure\ccme4 C:\oracle\10.2.0\bin C:\BI_HOME\bin C:\BI_HOME\jre\1.4.2\bin C:\BI_HOME\jre\1.4.2\bin\client C:\BI_HOME\jlib C:\OpenSSL-Win64\bin C:\Program Files (x86)\Microsoft SQL Server\150\DTS\Binn C:\Users\xxx\AppData\Local\Programs\Microsoft VS Code\bin

sys.path: C:\Users\xxx.conda\envs\test\Scripts C:\Users\xxx.conda\envs\test\python37.zip C:\Users\xxx.conda\envs\test\DLLs C:\Users\xxx.conda\envs\test\lib C:\Users\xxx.conda\envs\test C:\Users\xxx.conda\envs\test\lib\site-packages C:\Users\xxx.conda\envs\test\lib\site-packages\win32 C:\Users\xxx.conda\envs\test\lib\site-packages\win32\lib C:\Users\xxx.conda\envs\test\lib\site-packages\Pythonwin

sys.executable: C:\Users\xxx.conda\envs\test\python.exe

sys.version: 3.7.4 (default, Aug 9 2019, 18:34:13) [MSC v.1915 64 bit (AMD64)]

platform.platform(): Windows-8.1-6.3.9600-SP0

where jupyter: C:\Users\xxx.conda\envs\test\Scripts\jupyter.exe

pip list: Package Version ----------------- --------- attrs 19.1.0 backcall 0.1.0 bleach 3.1.0 certifi 2019.9.11 colorama 0.4.1 decorator 4.4.0 defusedxml 0.6.0 entrypoints 0.3 ipykernel 5.1.2 ipython 7.8.0 ipython-genutils 0.2.0 jedi 0.15.1 Jinja2 2.10.1 json5 0.8.5 jsonschema 3.0.2 jupyter-client 5.3.3 jupyter-core 4.5.0 jupyterlab 1.1.4 jupyterlab-server 1.0.6 MarkupSafe 1.1.1 mistune 0.8.4 nbconvert 5.6.0 nbformat 4.4.0 notebook 6.0.1 pandocfilters 1.4.2 parso 0.5.1 pickleshare 0.7.5 pip 19.2.3 prometheus-client 0.7.1 prompt-toolkit 2.0.9 Pygments 2.4.2 pyrsistent 0.15.4 python-dateutil 2.8.0 pywin32 223 pywinpty 0.5.5 pyzmq 18.1.0 Send2Trash 1.5.0 setuptools 41.2.0 six 1.12.0 terminado 0.8.2 testpath 0.4.2 tornado 6.0.3 traitlets 4.3.2 wcwidth 0.1.7 webencodings 0.5.1 wheel 0.33.6 wincertstore 0.2

(test) C:\WINDOWS\system32>

Command Line Output

(base) C:\WINDOWS\system32>activate test

(test) C:\WINDOWS\system32>jupyter lab [I 15:50:55.678 LabApp] JupyterLab extension loaded from C:\Users\xxx
.conda\envs\test\lib\site-packages\jupyterlab [I 15:50:55.678 LabApp] JupyterLab application directory is C:\Users\xxx.conda\envs\test\share\jupyter\lab [I 15:50:55.682 LabApp] Serving notebooks from local directory: C:\WINDOWS\syste m32 [I 15:50:55.682 LabApp] The Jupyter Notebook is running at: [I 15:50:55.682 LabApp] http://localhost:8888/?token=e2f1c73d291f7e884d3c618eb43 83196c2d75484a0f88d96 [I 15:50:55.682 LabApp] or http://127.0.0.1:8888/?token=e2f1c73d291f7e884d3c618 eb4383196c2d75484a0f88d96 [I 15:50:55.682 LabApp] Use Control-C to stop this server and shut down all kern els (twice to skip confirmation). [C 15:50:55.914 LabApp]

To access the notebook, open this file in a browser:
    file://A-FILEDATA-COV-P/Profile/xxx/AppData/Roaming/jupyter/ru

ntime/nbserver-8544-open.html Or copy and paste one of these URLs: http://localhost:8888/?token=e2f1c73d291f7e884d3c618eb4383196c2d75484a0f 88d96 or http://127.0.0.1:8888/?token=e2f1c73d291f7e884d3c618eb4383196c2d75484a0f 88d96 [W 15:51:04.157 LabApp] Could not determine jupyterlab build status without node js [E 15:51:13.236 LabApp] Uncaught exception POST /api/sessions?1569509473167 (::1 ) HTTPServerRequest(protocol=‘http’, host=‘localhost:8888’, method=‘POST’, uri =‘/api/sessions?1569509473167’, version=‘HTTP/1.1’, remote_ip=‘::1’) Traceback (most recent call last): File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\we b.py”, line 1699, in _execute result = await result File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File “C:\Users\xxx.conda\envs\test\lib\site-packages\notebook\s ervices\sessions\handlers.py”, line 72, in post type=mtype)) File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 735, in run value = future.result() File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File “C:\Users\xxx.conda\envs\test\lib\site-packages\notebook\s ervices\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\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 735, in run value = future.result() File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File “C:\Users\xxx.conda\envs\test\lib\site-packages\notebook\s ervices\sessions\sessionmanager.py”, line 101, in start_kernel_for_session self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_na me) File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 735, in run value = future.result() File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 209, in wrapper yielded = next(result) File “C:\Users\xxx.conda\envs\test\lib\site-packages\notebook\s ervices\kernels\kernelmanager.py”, line 168, in start_kernel super(MappingKernelManager, self).start_kernel(**kwargs) File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\multikernelmanager.py”, line 110, in start_kernel km.start_kernel(**kwargs) File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\manager.py”, line 240, in start_kernel self.write_connection_file() File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\connect.py”, line 547, in write_connection_file kernel_name=self.kernel_name File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\connect.py”, line 212, in write_connection_file with secure_write(fname) as f: File “C:\Users\xxx.conda\envs\test\lib\contextlib.py”, line 112 , in enter return next(self.gen) File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\connect.py”, line 100, in secure_write win32_restrict_file_to_user(fname) File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\connect.py”, line 61, in win32_restrict_file_to_user sd = win32security.GetFileSecurity(fname, win32security.DACL_SECURITY_IN FORMATION) pywintypes.error: (50, ‘GetFileSecurity’, ‘The request is not supported.’) [W 15:51:13.245 LabApp] Unhandled error [E 15:51:13.247 LabApp] { “Host”: “localhost:8888”, “Connection”: “keep-alive”, “Content-Length”: “97”, “Authorization”: “token e2f1c73d291f7e884d3c618eb4383196c2d75484a0f88d96”,

  "Origin": "http://localhost:8888",
  "X-Xsrftoken": "2|e0797587|bfb0295d2cfd16737a016247e6e4c3bb|1569403253",
  "User-Agent": "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36

(KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36", “Content-Type”: “application/json”, “Accept”: “/”, “Referer”: “http://localhost:8888/lab”, “Accept-Encoding”: “gzip, deflate, br”, “Accept-Language”: “en-US,en;q=0.9”, “Cookie”: “_xsrf=2|e0797587|bfb0295d2cfd16737a016247e6e4c3bb|1569403253; u sername-localhost-8889="2|1:0|10:1569504770|23:username-localhost-8889|44:NGY0Y jJmZTI2MDZiNGU1ZDk5MTNjYjY3MTcwYjdlMDM=|caa84e45c938a438e74fe746b2d337a2e50d7882 a22c70ec0f114d22aa337feb"; username-localhost-8888="2|1:0|10:1569509473|23:use rname-localhost-8888|44:MDFkMmNlYjcwYzgxNGY3M2JlYmFjYTA4OTE2MGMwNDI=|d3bdb147f2b afff4d6e7528326a74e6b7d13199b6f63400e84e2c00af8337dbf"” } [E 15:51:13.248 LabApp] 500 POST /api/sessions?1569509473167 (::1) 69.19ms refer er=http://localhost:8888/lab [E 15:51:38.978 LabApp] Uncaught exception POST /api/sessions?1569509497781 (::1 ) HTTPServerRequest(protocol=‘http’, host=‘localhost:8888’, method=‘POST’, uri =‘/api/sessions?1569509497781’, version=‘HTTP/1.1’, remote_ip=‘::1’) Traceback (most recent call last): File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\we b.py”, line 1699, in _execute result = await result File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File “C:\Users\xxx.conda\envs\test\lib\site-packages\notebook\s ervices\sessions\handlers.py”, line 72, in post type=mtype)) File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 735, in run value = future.result() File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File “C:\Users\xxx.conda\envs\test\lib\site-packages\notebook\s ervices\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\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 735, in run value = future.result() File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 742, in run yielded = self.gen.throw(*exc_info) # type: ignore File “C:\Users\xxx.conda\envs\test\lib\site-packages\notebook\s ervices\sessions\sessionmanager.py”, line 101, in start_kernel_for_session self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_na me) File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 735, in run value = future.result() File “C:\Users\xxx.conda\envs\test\lib\site-packages\tornado\ge n.py”, line 209, in wrapper yielded = next(result) File “C:\Users\xxx.conda\envs\test\lib\site-packages\notebook\s ervices\kernels\kernelmanager.py”, line 168, in start_kernel super(MappingKernelManager, self).start_kernel(**kwargs) File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\multikernelmanager.py”, line 110, in start_kernel km.start_kernel(**kwargs) File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\manager.py”, line 240, in start_kernel self.write_connection_file() File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\connect.py”, line 547, in write_connection_file kernel_name=self.kernel_name File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\connect.py”, line 212, in write_connection_file with secure_write(fname) as f: File “C:\Users\xxx.conda\envs\test\lib\contextlib.py”, line 112 , in enter return next(self.gen) File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\connect.py”, line 100, in secure_write win32_restrict_file_to_user(fname) File “C:\Users\xxx.conda\envs\test\lib\site-packages\jupyter_cl ient\connect.py”, line 61, in win32_restrict_file_to_user sd = win32security.GetFileSecurity(fname, win32security.DACL_SECURITY_IN FORMATION) pywintypes.error: (50, ‘GetFileSecurity’, ‘The request is not supported.’) [W 15:51:38.984 LabApp] Unhandled error [E 15:51:38.985 LabApp] { “Host”: “localhost:8888”, “Connection”: “keep-alive”, “Content-Length”: “97”, “Pragma”: “no-cache”, “Cache-Control”: “no-cache”, “Authorization”: “token e2f1c73d291f7e884d3c618eb4383196c2d75484a0f88d96”,

  "Origin": "http://localhost:8888",
  "X-Xsrftoken": "2|e0797587|bfb0295d2cfd16737a016247e6e4c3bb|1569403253",
  "User-Agent": "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36

Browser Output

Starting application in workspace: "/lab"
api/sessions?1569509473167:1 
Failed to load resource: the server responded with a status of 500 (Internal Server Error)
serverconnection.js:193 
POST http://localhost:8888/api/sessions?1569509497781 500 (Internal Server Error)
handleRequest @ serverconnection.js:193
makeRequest @ serverconnection.js:75
startSession @ default.js:636
startNew @ default.js:614
startNew @ default.js:378
startNew @ session.js:50
startNew @ manager.js:166
_startSession @ clientsession.js:418
_changeKernel @ clientsession.js:370
(anonymous) @ clientsession.js:403
serverconnection.js:89 
Uncaught (in promise) Error: Invalid response: 500 Internal Server Error
    at default.js:639
    at async SessionManager.startNew (manager.js:166)
ResponseError @ serverconnection.js:89
(anonymous) @ default.js:639

About this issue

Original URL
State: closed
Created 5 years ago
Reactions: 1
Comments: 23 (12 by maintainers)

Most upvoted comments

related to this issue?

https://stackoverflow.com/questions/58075788/pywintypes-error-50-getfilesecurity-the-request-is-not-supported-while

the culprit is jupyter-client >= 5.3.2 downgrading to 5.3.1 resolves the issue.

pip install jupyter-client==5.3.1

tomanizer on Oct 3, 2019

I think when in insecure mode we should skip trying to do any windows ACL permissions as the number of exceptions that could be raised when you have partial or no permissions if high and hard for us to guarantee would be caught without catching all exceptions (not a good idea either). @kevin-bates we’ll need another PR, I’ll get it up tonight to cover this path.

Longer term perhaps jupyter should be using the registry on windows to either find a path to stash secrets, or to stash the secrets themselves, as the default file system paths jupyter selects aren’t guaranteed to be editable / permissible in the way needed for secure writes.

This issue is messing majorly with jupyter in corporate setups.

Apologies for that. It would help to know what the mounted file system is and if it’s your whole filesystem or just a single folder. It seems like the whole home directory is mounted in a way that permissions can’t be set, which seems like it’d be problematic for other applications that write to the .AppData and other private home folders. But I don’t actually have a reproducible setup for this error so it’s difficult to say what that setup is.

MSeal on Feb 17, 2020

Hi. I figured out how to get it to ‘stick’ by modifying my system envs for Windows 10. Done as follows: Open the Start Search, type in “env”, and choose “Edit the system environment variables”: Click the “Environment Variables…” button. Then ‘New’ System Variable. Add a line - Variable name = “JUPYTER_RUNTIME_DIR”. Value = %path you want%. In my case it was c:\ProgramData\jupyter

Shongololo on Feb 15, 2020

I don’t remember the syntax for setting environment variables on Windows, but you’ll want to use uppercase and under bars in your variable name, something like this:
set JUPYTER_RUNTIME_DIR=c:\ProgramData\jupyter
Before that, however, you should upgrade jupyter_client - which will also upgrade jupyter_core. They should be at versions 5.3.4 and 4.6.2 respectively.

Thank you @kevin-bates !

I have just had success. Just need to find out a way to make the setting persist, as this command seems to only work for the session inside the cmd.

This is my story for anyone else to learn (I run Anconda which comes pre installed with Jupyter):

1- When checking the environment paths by using this command: jupyter --paths I get two roaming locations one for runtime and one for data! This is because I use a corporate laptop and Windows is setup to store user data files in a roaming location on the network!

(base) C:\>jupyter --paths
config:
    C:\Users\user_x\.jupyter
    C:\ProgramData\Anaconda3\etc\jupyter
    C:\ProgramData\jupyter
data:
    \\A-FILEDATA-P\Profile\use_x\AppData\Roaming\jupyter
    C:\ProgramData\Anaconda3\share\jupyter
    C:\ProgramData\jupyter
runtime:
    \\A-FILEDATA-P\Profile\use_x\AppData\Roaming\jupyter\runtime

(base) C:\>

2- So, I tried modifying C:\Users\user_xxx.jupyter\jupyter_notebook_config.py by adding JUPYTER_RUNTIME_DIR = 'C:\Users\user_x\AppData\Roaming\jupyter\runtime' but it did not work!

2- However, Big note here: I noticed that jupyter lab command fire a “stand alone” Chrome I have on a removable usb harddisk! which under the corporate Windows setup does not have any rights to write to other folder location on the laptop, thus the security error!

3- The solution was to setup two folders on my usb disk, where stand alone Chrome is found and set the environment variables to point to those locations like this:

set JUPYTER_RUNTIME_DIR=D:\jupyter\runtime
set JUPYTER_DATA_DIR=D:\jupyter

4- The only catch is that you have to do these two commands at the start of every new session as they don’t persist say when you restart Jupyter lab! and as @Shongololo pointed out you can only run other programs like Spyder from the command line only for it to read the correct settings!

It remains to be found out how this could be resolved permanently.

wikwok on Feb 15, 2020

I don’t remember the syntax for setting environment variables on Windows, but you’ll want to use uppercase and under bars in your variable name, something like this:

set JUPYTER_RUNTIME_DIR=c:\ProgramData\jupyter

Before that, however, you should upgrade jupyter_client - which will also upgrade jupyter_core. They should be at versions 5.3.4 and 4.6.2 respectively.

kevin-bates on Feb 15, 2020

The issue is usually that mounted file systems, especially in windows, don’t actually provide permission bit manipulation to the underlying files. Meaning when jupyter / your home directory is in such a mounted file system it can’t save your connection file secrets securely and fails when saving or checking permissions. If you have a path on your system which isn’t restricted in permissions you can set JUPYTER_RUNTIME_DIR or JUPYTER_DATA_DIR if you install your kernels to the location. This should enable your connection file to properly save with secure permissions on the secret file.

MSeal on Feb 4, 2020

Thanks again! Progress… I managed to upgrade both Jupyter and Spyder (4.0.1). Then ran

set JUPYTER_RUNTIME_DIR=c:\ProgramData\jupyter

I had to back track and move the ‘kernels’ and ‘runtime’ folders into the above path. When I ran spyder from the Anaconda prompt - success!! This after the set command above. No more win32security error!

However, when I run spyder from the icon on my toolbar the jupyter runtime directory is somehow lost so back to my old error. Now just to figure out how to get my set JUPYTER_RUNTIME_DIR to stick…

Shongololo on Feb 15, 2020

With jupyterlab_server=1.0.6 and jupyter_client=5.3.3, I had the same issue. This is on Windows 10, python 3.7.3.

If I just downgraded jupyter_client to 5.3.1, then the error went away, but I couldn’t hit Shift-Enter to run any cells in Jupyter Lab. So I had to downgrade jupyter_client to 5.3.1 and jupyterlab_server to 1.0.0.

conda install jupyterlab_server=1.0.0 jupyter_client=5.3.1

Dr-Irv on Oct 7, 2019