Upgrade to jupyterlab 1.0.0a3

[gnestor]

Upgrade jupyterlab dependencies to work with 1.0.0a3

[gnestor]

This build is failing because it's trying to jupyter labextension install . with jupyterlab stable vs. pre. I don't think we want to change the install command to pip install pytest jupyterlab==1.0.0a3 psutil because we will probably forget to change it back when 1.0.0 lands.

[saulshanabrook]

@gnestor What about waiting till 1.0 is out before upgrading the dependencies here?

Do you need this merged before then?

[jaipreet-s]

I have the same question as Saul. This'll break consumers using the last non-pre-release version of JupyterLab, who perhaps only want to use the released versions.

(Also thanks for PR!)

[gnestor]

This'll break consumers using the last non-pre-release version of JupyterLab, who perhaps only want to use the released versions.

We would release with a pre tag, like the @jupyterlab/github extension: https://www.npmjs.com/package/@jupyterlab/github

What about waiting till 1.0 is out before upgrading the dependencies here?

It's just currently not working with the 1.0 alpha, so if we merged this and did a pre-release, both alpha and stable users will be able to use it.

The only issue is that CI will fail unless we change something in the travis file... 🤔

[jaipreet-s]

The only issue is that CI will fail unless we change something in the travis file... 🤔

Our setup.py has a dependency on notebook, and not jupyterlab, which is all we need to get access to the relevant base classes in the server extension.

So, I don't think we need to install jupyterlab as a Python dependency in travis. Looking at the file history , we only had the notebook dependency at one point, so it should work just with it.

[gnestor]

Ok cool! Should I just delete the install entry in the travis file?

[jaipreet-s]

Ok cool! Should I just delete the install entry in the travis file?

Replacing jupyterlab with notebook should work 🤞

[gnestor]

Ok I just updated...

I have a feeling that travis is still going to fail on the jupyter labextension install . step 🤔

[set92]

Since they are going to release jupyterlab 1.0 in 2 days (jupyterlab/jupyterlab#6504) it would be good to have this merged with the master.

[gnestor]

@set92 I agree. There might be some new breaking API changes that affect jupyterlab-git so I need to take a second look and fix this merge conflict before we merge and publish a new version.

[jaipreet-s]

This was merged as part of #374 and released as part of version 0.7. Thanks all!