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Jupyter notebook does not connect to kernel(2) + Windows 10 Enterprise + ImportError: cannot import name 'constants'

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Installed Anaconda, and created a second environment (i.e. vamp_env) to run my script in Python 3.6.

I build my script a couple of years ago using Python 3.6, and older versions of the packages listed below. I used my script on numerous occasions, it runs well however only with the package versions listed below.

When launching jupyter notebook kernel(1) connects normally, however kernel(2) (vamp_env) does not.

Can someone please help??

======================================================================

My default browser is Google Chrome

Default path: C:\Users\MyName

I followed these steps in Anaconda Prompt:

conda create --name vamp_env

conda activate vamp_env

conda install python=3.6

conda install numpy==1.13.3

conda install scipy==0.19.1

conda install pandas==0.20.3

conda install xlrd matplotlib jinja2

conda install -c anaconda ipykernel

python -m ipykernel install --user --name=vamp_env

=======================================================================

Then I added the following paths to my environment variables:

C:\Users\MyName\Anaconda3

C:\Users\MyName\Anaconda3\Library\mingw-w64\bin

C:\Users\MyName\Anaconda3\Library\bin

C:\Users\MyName\Anaconda3\Scripts

C:\Users\MyName\Anaconda3\bin

=======================================================================

The following messages appear on Anaconda Prompt.

[I 12:49:35.090 NotebookApp] KernelRestarter: restarting kernel (4/5), new random portsTraceback (most recent call last):

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\runpy.py", line 195, in _run_module_as_main"main", mod_spec)

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\runpy.py", line 87, in _run_codeexec(code, run_globals)

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\ipykernel_launcher.py", line 15, in from ipykernel import kernelapp as app

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\ipykernel_init_.py", line 2, in from .connect import *

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\ipykernel\connect.py", line 18, in import jupyter_client

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\jupyter_client_init_.py", line 4, in from .connect import *

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\jupyter_client\connect.py", line 21, in import zmq

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\zmq_init_.py", line 55, in from zmq import backend

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\zmq\backend_init_.py", line 40, in reraise(*exc_info)

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraiseraise value

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\zmq\backend_init_.py", line 27, in _ns = select_backend(first)

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\zmq\backend\select.py", line 28, in select_backendmod = import(name, fromlist=public_api)

File "C:\Users\MyName\Anaconda3\envs\vamp_env\lib\site-packages\zmq\backend\cython_init_.py", line 6, in from . import (constants, error, message, context,

ImportError: cannot import name 'constants'

[W 12:49:38.122 NotebookApp] KernelRestarter: restart failed

[W 12:49:38.123 NotebookApp] Kernel 248bb278-4e77-42df-8399-25f7e2b0db9a died, removing from map.

[W 12:49:59.815 NotebookApp] Timeout waiting for kernel_info reply from f2b6c540-69d3-46e5-857c-66b244a2e7d9

[E 12:49:59.817 NotebookApp] Error opening stream: HTTP 404: Not Found (Kernel does not exist: f2b6c540-69d3-46e5-857c-66b244a2e7d9)

[W 12:50:01.018 NotebookApp] Replacing stale connection: 248bb278-4e77-42df-8399-25f7e2b0db9a:1e0dfb64a2384c8e915c30bbf6b9ec23

[W 12:50:23.362 NotebookApp] Timeout waiting for kernel_info reply from 248bb278-4e77-42df-8399-25f7e2b0db9a

[E 12:50:23.363 NotebookApp] Error opening stream: HTTP 404: Not Found (Kernel does not exist: 248bb278-4e77-42df-8399-25f7e2b0db9a)

[W 12:50:23.370 NotebookApp] 404 GET /api/kernels/248bb278-4e77-42df-8399-25f7e2b0db9a/channels?session_id=1e0dfb64a2384c8e915c30bbf6b9ec23 (::1): Kernel does not exist: 248bb278-4e77-42df-8399-25f7e2b0db9a

[W 12:50:23.391 NotebookApp] 404 GET /api/kernels/248bb278-4e77-42df-8399-25f7e2b0db9a/channels?session_id=1e0dfb64a2384c8e915c30bbf6b9ec23 (::1) 22376.820000ms referer=None

[W 12:50:25.405 NotebookApp] Replacing stale connection: 248bb278-4e77-42df-8399-25f7e2b0db9a:1e0dfb64a2384c8e915c30bbf6b9ec23

[W 12:50:25.710 NotebookApp] Replacing stale connection: 248bb278-4e77-42df-8399-25f7e2b0db9a:1e0dfb64a2384c8e915c30bbf6b9ec23

[I 12:50:59.521 NotebookApp] Saving file at /test case/STEP_1_3.ipynb


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