Cannot open Jupyter notebook, multiple errors. #646

DrBanana419 · 2021-07-15T08:52:09Z

When I try to run sage -n jupyter I get this (excluding the banner):

`Please wait while the Sage Jupyter Notebook server starts...
Traceback (most recent call last):
File "/usr/lib/python3.9/site-packages/traitlets/traitlets.py", line 535, in get
value = obj._trait_values[self.name]
KeyError: 'allow_remote_access'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python3.9/site-packages/notebook/notebookapp.py", line 1129, in _default_allow_remote
addr = ipaddress.ip_address(self.ip)
File "/usr/lib/python3.9/ipaddress.py", line 53, in ip_address
raise ValueError('%r does not appear to be an IPv4 or IPv6 address' %
ValueError: 'localhost' does not appear to be an IPv4 or IPv6 address

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/lib/python-exec/python3.9/sage-notebook", line 218, in
launcher(unknown)
File "/usr/lib/python-exec/python3.9/sage-notebook", line 39, in init
main(argv)
File "/usr/lib/python3.9/site-packages/jupyter_core/application.py", line 254, in launch_instance
return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
File "/usr/lib/python3.9/site-packages/traitlets/config/application.py", line 844, in launch_instance
app.initialize(argv)
File "/usr/lib/python3.9/site-packages/traitlets/config/application.py", line 87, in inner
return method(app, *args, **kwargs)
File "/usr/lib/python3.9/site-packages/notebook/notebookapp.py", line 2130, in initialize
self.init_webapp()
File "/usr/lib/python3.9/site-packages/notebook/notebookapp.py", line 1759, in init_webapp
self.web_app = NotebookWebApplication(
File "/usr/lib/python3.9/site-packages/notebook/notebookapp.py", line 179, in init
settings = self.init_settings(
File "/usr/lib/python3.9/site-packages/notebook/notebookapp.py", line 282, in init_settings
allow_remote_access=jupyter_app.allow_remote_access,
File "/usr/lib/python3.9/site-packages/traitlets/traitlets.py", line 575, in get
return self.get(obj, cls)
File "/usr/lib/python3.9/site-packages/traitlets/traitlets.py", line 538, in get
default = obj.trait_defaults(self.name)
File "/usr/lib/python3.9/site-packages/traitlets/traitlets.py", line 1578, in trait_defaults
return self._get_trait_default_generator(names[0])(self)
File "/usr/lib/python3.9/site-packages/traitlets/traitlets.py", line 975, in call
return self.func(*args, **kwargs)
File "/usr/lib/python3.9/site-packages/notebook/notebookapp.py", line 1138, in _default_allow_remote
parsed = ipaddress.ip_address(addr.split('%')[0])
AttributeError: 'int' object has no attribute 'split'`

Although I'm not sure if this is a sage issue or a jupyter issue. Here are my installed Jupyter packages (got from emerge -s jupyter):

`* dev-python/jupyter
Latest version available: 1.0.0-r3
Latest version installed: [ Not Installed ]
Size of files: 15 KiB
Homepage: https://jupyter.org
Description: Jupyter metapackage. Install all the Jupyter components in one go
License: BSD

dev-python/jupyter-threejs-sage [ Masked ]
Latest version available: 122
Latest version installed: [ Not Installed ]
Size of files: 164 KiB
Homepage: https://github.com/sagemath/threejs-sage
Description: Custom build of Three.js for SageMath
License: MIT
dev-python/jupyter_client
Latest version available: 6.1.12
Latest version installed: 6.1.12
Size of files: 295 KiB
Homepage: https://jupyter.org
Description: Jupyter protocol implementation and client libraries
License: BSD
dev-python/jupyter_console
Latest version available: 6.4.0
Latest version installed: [ Not Installed ]
Size of files: 35 KiB
Homepage: https://jupyter.org
Description: A terminal-based console frontend for Jupyter kernels
License: BSD
dev-python/jupyter_core
Latest version available: 4.7.1
Latest version installed: 4.7.1
Size of files: 68 KiB
Homepage: https://jupyter.org
Description: Core common functionality of Jupyter projects
License: BSD
dev-python/jupyter_jsmol
Latest version available: 0.2.4-r1
Latest version installed: 0.2.4-r1
Size of files: 6,162 KiB
Homepage: https://github.com/fekad/jupyter-jsmol
Description: jupyter jsmol widget viewer
License: BSD
dev-python/jupyter_packaging [ Masked ]
Latest version available: 0.10.4
Latest version installed: [ Not Installed ]
Size of files: 22 KiB
Homepage: https://jupyter.org
Description: Tools to help build and install Jupyter Python packages
License: BSD
dev-python/jupyter_server [ Masked ]
Latest version available: 1.8.0
Latest version installed: [ Not Installed ]
Size of files: 399 KiB
Homepage: https://jupyter.org
Description: Core services, APIs, and REST endpoints to Jupyter web applications
License: BSD
dev-python/jupyter_server_mathjax [ Masked ]
Latest version available: 0.2.3
Latest version installed: [ Not Installed ]
Size of files: 2,536 KiB
Homepage: https://jupyter.org
Description: MathJax resources as a Jupyter Server Extension
License: BSD
dev-python/jupyterlab_pygments
Latest version available: 0.1.2
Latest version installed: 0.1.2
Size of files: 549 KiB
Homepage: https://github.com/jupyterlab/jupyterlab_pygments
Description: Pygments theme making use of JupyterLab CSS variables
License: BSD
sci-visualization/jupyter-dash [ Masked ]
Latest version available: 0.4.0
Latest version installed: [ Not Installed ]
Size of files: 42 KiB
Homepage: https://plotly.com/dash/
Description: Plotly Dash apps from within Jupyter environments
License: MIT

[ Applications found : 11 ]`

The text was updated successfully, but these errors were encountered:

kiwifb · 2021-07-15T08:55:47Z

It looks like a network configuration problem on your machine. Do you have some kind of firewall running?

DrBanana419 · 2021-07-15T10:07:34Z

It looks like a network configuration problem on your machine. Do you have some kind of firewall running?

I didn't explicitly install a firewall, so no.

kiwifb · 2021-07-15T10:13:00Z

Have you ever run a standard jupyter notebook on that machine (i.e. not a sagemath kernel but a python or possibly other kernel)?

DrBanana419 · 2021-07-15T10:13:51Z

Have you ever run a standard jupyter notebook on that machine (i.e. not a sagemath kernel but a python or possibly other kernel)?

I have done it on another Linux distribution, but not on Gentoo.

kiwifb · 2021-07-15T10:15:00Z

You should be able to do so with jupyter notebook on the command line, I am curious to see if it will behave differently.

DrBanana419 · 2021-07-15T10:19:24Z

You should be able to do so with jupyter notebook on the command line, I am curious to see if it will behave differently.

Unfortunately jupyter notebook returns the same errors.

kiwifb · 2021-07-15T10:23:44Z

Which means it is not a sage specific problem, as I expected. Can you post the content of /etc/hosts and possibly the result of ip address?

DrBanana419 · 2021-07-15T10:28:19Z

These are the contents of /etc/hosts (minus the comments):

127.0.0.1	localhost
::1		        localhost
127.0.1.1	my-linux-pc.localdomain	my-linux-pc

And this is ip address:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether a8:a1:59:3c:87:65 brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.4/24 brd 192.168.0.255 scope global dynamic noprefixroute enp4s0
       valid_lft 4798sec preferred_lft 4798sec
    inet6 fe80::b545:860e:c7f5:5fb4/64 scope link noprefixroute
       valid_lft forever preferred_lft forever

By the way I tried jupyter notebook --ip="0.0.0.0" and that worked.

kiwifb · 2021-07-15T10:39:00Z

Then sage -n jupyter --ip="0.0.0.0" may work, although I must say I am confused by the fact that address works. Shows my ignorance on network stuff I guess.

DrBanana419 · 2021-07-15T13:19:29Z

I think that this should be kept open since workarounds like this should not be needed.

kiwifb · 2021-07-15T20:16:32Z

If you wish, but you should seek assistance from a jupyter help channel. They are more likely to figure out the issue.

strogdon mentioned this issue Jul 17, 2021

Cannot automatically open Jupyter notebook in a browser #647

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Cannot open Jupyter notebook, multiple errors. #646

Cannot open Jupyter notebook, multiple errors. #646

DrBanana419 commented Jul 15, 2021 •

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kiwifb commented Jul 15, 2021

Cannot open Jupyter notebook, multiple errors. #646

Cannot open Jupyter notebook, multiple errors. #646

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