Fastai v2 chat

muellerzr · November 18, 2019, 7:20pm

Did you restart the runtime when you installed the previous version?

amritv · November 18, 2019, 7:22pm

yes re-run runtime

muellerzr · November 18, 2019, 7:24pm

I just checked that too be sure. Same thing here.

For Jeremy and Sylvain, fastai2 version is 2.0.1, tried 0.1.20, 21, and 19 for fastprogress. I don’t see any recent commits that should have broken this functionality in the main library or in fastprogress so I’m unsure to what could be happening yet.

amritv · November 18, 2019, 7:29pm

worked just fine last night

muellerzr · November 19, 2019, 1:05pm

@amritv what version of ipywidgets is being used?

amritv · November 19, 2019, 3:51pm

7.5.1, same version as that being used with v1 and no issues

ipy

muellerzr · November 19, 2019, 4:49pm

IPython is the same version too?

amritv · November 19, 2019, 4:59pm

yes 5.5.0

muellerzr · November 19, 2019, 5:08pm

@amritv Sylvain suggests installing it via:

!pip install git+https://github.com/fastai/fastprogress —upgrade

If you have time can you check this? Otherwise I’ll try later today when I have access to a computer.

lgvaz · November 19, 2019, 5:15pm

I tried this, still getting the error =/

lgvaz · November 19, 2019, 5:20pm

Opps, my bad. I first had to uninstall the previous version. Now it works =)

muellerzr · November 19, 2019, 5:21pm

Awesome!!! Glad to hear it! thanks for checking for us I’ve updated the Colab install directions in the v2 wiki to include this

amritv · November 19, 2019, 5:27pm

Did’nt work even with restart but worked with the following - YAY!

!pip install git+https://github.com/fastai/fastprogress --upgrade

jeremy · November 19, 2019, 5:39pm

We’ll be doing a new fastprogress release today to fix this BTW.

sgugger · November 20, 2019, 2:34pm

Release has been done and requirements in fastai v2 updated, so this should be solved now.

sgugger · November 22, 2019, 3:39pm

The effort to package separately the functionality we use to develop in notebooks is almost finished in the nbdev repo. One of the tests was to check if it worked well with the current fastai v2. It does, but starting from this commit, you’ll need that module to use show_doc or the exporting functionality.

We’ll now work on packaging so that the install is easy but if you want to work on master right now, you need to clone the repo and do pip install -e . inside (or install it from github).

(Edited with the latest installation instructions for nbdev)

MichaelScofield · November 23, 2019, 6:43am

Hi. Anyone has trouble importing fastai2? It was just yesterday that everythings worked fine for me, but today:

I’m running on Colab notebooks

sgugger · November 23, 2019, 1:22pm

I replied in your issue but cross-posting here. We moved things around yesterday and there was a stage where nothing was working. If the problem persists today, you need to remove any old install you add before re-installing (for me I had to go as far as removing the fastai2-egg file in my site-package directory).

Things are more stable now, the main change you will see is that fastai2 now uses nbdev to be built (thanks to Jeremy you can now pip install nbdev) and is named everywhere fastai2 (there is no more a local module for the notebooks).

MichaelScofield · November 23, 2019, 1:25pm

I don’t quite understand. Even starting a new colab notebook with no previously installed fastai2 at all (which ensures there’s no files that starts with ‘fastai2-egg’, right?), I’m still facing the problem with pip install git+https://github.com/fastai/fastai_dev.

So can you please provide the clear steps to install fastai2? I had a look at readme but haven’t seen a change so far. Thank you.

sgugger · November 23, 2019, 1:39pm

Wait a sec, we’re changing repo for fastai2 anyway. Will update everything soon.