Truncated Notebooks

philblum · October 6, 2018, 6:21pm

All DL1 notebooks are truncated. “Notebook failed to load. The error was: “[sprintf] expecting number but found string” See error console for details.”

cauthy · October 6, 2018, 8:26pm

same problem

jeremy · October 6, 2018, 8:28pm

Try doing a fresh clone - they’re working fine for me and look OK in github:

github.com

fastai/fastai/blob/master/courses/dl1/lesson1.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Image classification with Convolutional Neural Networks"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Welcome to the first week of the second deep learning certificate! We're going to use convolutional neural networks (CNNs) to allow our computer to see - something that is only possible thanks to deep learning."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [

This file has been truncated. show original

philblum · October 6, 2018, 9:04pm

Yes, starting from scratch works:
rm -r fastai git clone https://github.com/fastai/fastai.git

cauthy · October 7, 2018, 12:28am

tried several times in Ubuntu. Still same problem.
Everyhing works fine in Windows though.

salil_23 · October 7, 2018, 1:04am

@jeremy I tried deleting the fastai directory and started with a fresh clone. Still the same problem for all the ML and DL notebooks. I am on Ubuntu 18.04.

gnarmis · October 7, 2018, 8:12pm

I encountered the same issue, and I think I resolved it.

I’m a Paperspace user with the standard fast.ai template Ubuntu machine. I set this up Oct 3 and was encountering this truncated notebooks issue.

The problem seems to be the versions of packages and other dependencies.

I found Fastai v0 install issues thread and discovered that conda activate didn’t work because conda was too old.

So, the solution at a high level is to:

work from the latest code in the fastai repo
update conda (and pip too, why not) and ensure you can run conda activate
destroy the fastai conda environment
setup the fastai conda enviroment
re-configure the IP address for Jupyter Notebook

Some more detail:

– update the repo
– update conda and pip

# turn off the active environment
source deactivate
# update pip and conda
pip install pip -U
conda update conda

Now, you’ll need to update some lines in ~/.bashrc. When you try to conda activate, conda will tell you what to change. I updated the very tail of my ~/.bashrc to this:

# ...other stuff omitted
# Previous to conda 4.4, the recommended way to activate conda was to modify PATH in
# your ~/.bashrc file. But now, don't do that.
#export PATH=~/anaconda3/bin:$PATH
. /home/paperspace/anaconda3/etc/profile.d/conda.sh
conda activate fastai

3., 4. – re-setup the fastai environment

# remove the fastai env first
conda env remove -y -n fastai
# now, in the fastai repo, re-create it
cd $HOME/fastai
conda env create -f environment.yml

5.-- configure jupyter if needed

I encountered this: Jupyter notebook KeyError: ‘allow_remote_access’. The following fixed it:

jupyter notebook --generate-config ~/.jupyter/jupyter_notebook_config.py "c.NotebookApp.ip = '127.0.0.1'"

After all this, I’m able to launch notebooks without truncations, and I’m working off the all the up to date code in the repo, and the up to date dependencies.

ronaldokun · October 8, 2018, 6:45pm

Hello,

In Google Cloud I was having the same issue describe in nº 5.

It fixed for me too.

Thank you

xuanyuyt · October 30, 2018, 12:52pm

I also find this problem in windows. The solution is clearn all outputs:
you can use nbclean(pip install nbclean)

then, this is a example:

import nbclean as nbc
path_original_notebook = 'D:/tyang/fastai/courses/dl1/lesson1_.ipynb'
path_save = 'D:/tyang/fastai/courses/dl1/lesson1_.ipynb'
ntbk = nbc.NotebookCleaner(path_original_notebook)
ntbk.clear('output')
ntbk.save(path_save)

ab123 · November 16, 2018, 9:23pm

Can someone please tell me how to solve this problem??
Deleting and then cloning is not working.
I am working with the fast.ai public template on a n Ubuntu System.

corey · December 11, 2018, 3:49am

I used paperspace and had the same issues. Didn’t work until I destroyed and setup the fastai conda environment again.

psukphranee · January 19, 2019, 5:16am

This worked for me. Thank You. However, I cannot connect to the Jupyter Notebook from the browser. Please advise. Thank you

clovett · May 15, 2019, 10:06pm

I was having the same issue so I upgraded my version of the “notebook” package by running “conda upgrade notebook”. This moved me from version 5.4 to version 5.7 and now everything is fine.