It sounds to me like your installation is messed up somehow. Also, the "no
active environment" looks a bit suspicious.
To debug issues like this, I usually try to start python alone, import
something relevant (like notebook), and then query `notebook.__file__` to
see if I'm importing notebook from where I think I should be importing
notebook: python -c "import notebook; print(notebook.__file__)" or something
Jason
On Thu, Oct 17, 2019 at 8:53 AM brian piercy <bjp...@gmail.com> wrote:
>
> - rebuilding after a crash. i started via a fresh Anaconda download.
> Here's the results of 'jupyter --version"
>
>
> - bjpcjp@bjpcjp-Lenovo-Z710:~$ jupyter --version
> - jupyter core : 4.6.0
> - jupyter-notebook : 6.0.1
> - qtconsole : 4.5.5
> - ipython : 7.8.0
> - ipykernel : 5.1.2
> - jupyter client : 5.3.4
> - jupyter lab : not installed ('conda install jupyterlab' returns "all
> packages already installed")
> - nbconvert : 5.6.0
> - ipywidgets : 7.5.1
> - nbformat : 4.4.0
> - traitlets : 4.3.3
>
>
> - I get the error msg shown in the title, despite multiple reinstalls,
> via "jupyter notebook".
>
> according to 'conda info':
>
> - no active environment
> - conda 4.7, conda-build 3.18, python 3.7.4.
> - channel URLs listed
> - package caches present; envs directories present; linux-64 platform.
>
> ideas? Thank you. (also posted in GitHub
> <https://github.com/jupyter/notebook/issues/4982>, FYI.)
>
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