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jupyterlab-manager-0.35 installation hungs with jupyterlab 0.32.1

See original GitHub issue

I have: OSX 10.13.4 python 3.6.5 jupyterlab 0.32.1

To start form a clean sheet I do

jupyter labextension uninstall @jupyter-widgets/jupyterlab-manager
jupyter lab clean
jupyter lab build

Then I try to install again jupyterlab-manager:

$ jupyter labextension install @jupyter-widgets/jupyterlab-manager
> /usr/local/bin/npm pack @jupyter-widgets/jupyterlab-manager
jupyter-widgets-jupyterlab-manager-0.35.0.tgz
> node /Users/e/anaconda3/lib/python3.6/site-packages/jupyterlab/staging/yarn.js install
yarn install v1.5.1
(node:11382) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
info No lockfile found.
[1/4] 🔍  Resolving packages...
⢀ @jupyter-widgets/jupyterlab-manager@file:../extensions/jupyter-widgets-jupyterlab-manager-0.35.0.tgz

At this stage the installation keeps on this line for minutes. Usually after > 5 minutes I kill the install.

Issue Analytics

State:
Created 5 years ago
Reactions:29
Comments:27 (8 by maintainers)

Top GitHub Comments

69reactions

yozletcommented, Jun 13, 2018

Yet another way to get this working, but without installing a different node version (and without waiting for a JupyterLab build with jupyterlab/jupyterlab#4632). In my setup, I have everything in a virtualenv.

Upgrade your system yarn to 1.7.0 or higher: npm install -g yarn It will probably do something like this:

bash-3.2$ npm install -g yarn
/usr/local/bin/yarn -> /usr/local/lib/node_modules/yarn/bin/yarn.js
/usr/local/bin/yarnpkg -> /usr/local/lib/node_modules/yarn/bin/yarn.js

Hang onto the complete path to yarn.js that npm reported. (It might be a different path on your system to what I’ve pasted above.)
Find where the jupyterlab Python module is installed; in my virtualenv, it’s in lib/python3.6/site-packages/jupyterlab/
Inside the module, edit staging/.yarnrc, which will look like:

yarn-path "./yarn.js"

Change the value to the complete path to yarn.js that you grabbed in step 2.

jupyter labextension install should now work!

23reactions

jwkvamcommented, May 2, 2018

Seems to be a node 10 issue. I’m on macos too and I use homebrew to manage node. I think last week it upgraded me to node 10. I tried updating my jupyterlab today and it was having trouble with these packages. I downgraded to node 8 by

brew install node@8

and everything seems to be working fine again.

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