Questions[jupyter](ubuntu)

I'm getting a common error, but the chmod solutions I've found don't seem to be working.

When I create a Jupyter notebook through terminal, by running jupyter notebook, on Ubuntu 19.10, I get this error I'm sure many are familiar with:

The file at file:///home/vurnhat/.local/share/jupyter/runtime/nbserver-25715-open.html is not readable. It may have been removed, moved, or file permissions may be preventing access.

I've manually pasted the link into Firefox and it works. Is there any way I can change some setting in my Chromium browser to get it to work there?

Is there a way to configure Ubuntu 18.04 to open Jupyter Notebooks with a double click from the graphical file browser?

There are 2 prominent Stack Overflow posts on the subject:

https://stackoverflow.com/questions/30953227/double-click-to-open-an-ipython-notebook

https://stackoverflow.com/questions/30953227/double-click-to-open-an-ipython-notebook/30955613

But most of the answers here pertain to MacOS, and the few relating to Linux did not seem to work for me on Ubuntu 18.04.

Something completely different from the above that I tried was to make a desktop file:

cd ~/.local/share/applications
gedit jupyter_notebook.desktop

In Gedit I entered this:

[Desktop Entry]
Comment=
Terminal=false
Name=JupyterNotebook
Exec="jupyter notebook" %f
Type=Application

But this did not work. Double-clicking on a .ipynb file still opens it in Chrome and shows the .json contents rather than running it as a notebook.

Has anybody actually gotten this functionality to work with Ubuntu 18.04?

I am starting jupyter notebook from the terminal, and am not using anaconda.

When I try to create a new python3 notebook I get this error message:

I have tried the method in this link Cannot open new Jupyter notebook permission denied

However the issue still persists.

On attempting to launch Jupyter on Python 3.7, I observe the following:

$ jupyter notebook
Traceback (most recent call last):
  File "/usr/local/bin/jupyter-notebook", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/dist-packages/jupyter_core/application.py", line 266, in launch_instance
    return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/traitlets/config/application.py", line 657, in launch_instance
    app.initialize(argv)
  File "<decorator-gen-7>", line 2, in initialize
  File "/usr/local/lib/python3.7/dist-packages/traitlets/config/application.py", line 87, in catch_config_error
    return method(app, *args, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/notebook/notebookapp.py", line 1629, in initialize
    self.init_webapp()
  File "/usr/local/lib/python3.7/dist-packages/notebook/notebookapp.py", line 1379, in init_webapp
    self.jinja_environment_options,
  File "/usr/local/lib/python3.7/dist-packages/notebook/notebookapp.py", line 158, in __init__
    default_url, settings_overrides, jinja_env_options)
  File "/usr/local/lib/python3.7/dist-packages/notebook/notebookapp.py", line 270, in init_settings
    nbextensions_path=jupyter_app.nbextensions_path,
  File "/usr/local/lib/python3.7/dist-packages/notebook/notebookapp.py", line 1066, in nbextensions_path
    from IPython.paths import get_ipython_dir
  File "/usr/local/lib/python3.7/dist-packages/IPython/__init__.py", line 54, in <module>
    from .core.application import Application
  File "/usr/local/lib/python3.7/dist-packages/IPython/core/application.py", line 25, in <module>
    from IPython.core import release, crashhandler
  File "/usr/local/lib/python3.7/dist-packages/IPython/core/crashhandler.py", line 27, in <module>
    from IPython.core import ultratb
  File "/usr/local/lib/python3.7/dist-packages/IPython/core/ultratb.py", line 119, in <module>
    from IPython.utils import path as util_path
  File "/usr/local/lib/python3.7/dist-packages/IPython/utils/path.py", line 17, in <module>
    from IPython.utils.process import system
  File "/usr/local/lib/python3.7/dist-packages/IPython/utils/process.py", line 19, in <module>
    from ._process_posix import system, getoutput, arg_split, check_pid
  File "/usr/local/lib/python3.7/dist-packages/IPython/utils/_process_posix.py", line 23, in <module>
    import pexpect
  File "/usr/lib/python3/dist-packages/pexpect/__init__.py", line 75, in <module>
    from .pty_spawn import spawn, spawnu
  File "/usr/lib/python3/dist-packages/pexpect/pty_spawn.py", line 15, in <module>
    from .spawnbase import SpawnBase
  File "/usr/lib/python3/dist-packages/pexpect/spawnbase.py", line 218
    def expect(self, pattern, timeout=-1, searchwindowsize=-1, async=False):
                                                                   ^
SyntaxError: invalid syntax

I've installed python3.7-distutils (which appears to feature pexpect) and I've reinstalled Jupyter using pip3, yet I still see this error. I've also uninstalled and reinstalled the following packages:

python3.7 python3.7-dev python3.7-distutils python3.7-tk

What should be done?

I see reference to this fix but, assuming it is a fix, don't know how to get it up and running on this 16.04 LTS install.

EDIT: On importing pexpect in Python 3.7, I get the same sort of thing:

>>> import pexpect
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3/dist-packages/pexpect/__init__.py", line 75, in <module>
    from .pty_spawn import spawn, spawnu
  File "/usr/lib/python3/dist-packages/pexpect/pty_spawn.py", line 15, in <module>
    from .spawnbase import SpawnBase
  File "/usr/lib/python3/dist-packages/pexpect/spawnbase.py", line 218
    def expect(self, pattern, timeout=-1, searchwindowsize=-1, async=False):
                                                                   ^
SyntaxError: invalid syntax

I am installing Intel OpenVINO Toolkit in which I configure the model optimizer.

(ankit) ankit@ankit-HP-Notebook:~/intel/computer_vision_sdk_2018.3.343/deployment_tools/model_optimizer/install_prerequisites$ sudo ./install_prerequisites.sh
Hit:1 https://download.docker.com/linux/ubuntu xenial InRelease
Hit:2 http://in.archive.ubuntu.com/ubuntu xenial InRelease                     
Get:3 http://security.ubuntu.com/ubuntu xenial-security InRelease [107 kB]     
Hit:4 http://archive.canonical.com xenial InRelease                            
Get:5 http://in.archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]    
Get:6 http://in.archive.ubuntu.com/ubuntu xenial-backports InRelease [107 kB]  
Get:7 http://in.archive.ubuntu.com/ubuntu xenial-proposed InRelease [260 kB]
Fetched 583 kB in 2s (287 kB/s)   
Reading package lists... Done
Building dependency tree       
Reading state information... Done
21 packages can be upgraded. Run 'apt list --upgradable' to see them.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python3-venv is already the newest version (3.5.1-3).
libgfortran3 is already the newest version (5.4.0-6ubuntu1~16.04.10).
python3-pip is already the newest version (8.1.1-2ubuntu0.4).
0 upgraded, 0 newly installed, 0 to remove and 21 not upgraded.
/usr/local/bin/python3: No module named pip
Error on or near line 85; exiting with status 1

I have tried many things, so how can I solve it?