NameError: name 'IN_NOTEBOOK' is not defined

Part 1 (2020)
1

Hi,

I’m trying to set up the notebooks and run the code in 01_intro, but I’ve been hit with the same error on two different platforms.

If I try to run the first cell:

#hide
!pip install -Uqq fastbook
import fastbook
fastbook.setup_book()

I get a NameError: name ‘IN_NOTEBOOK’ is not defined. I get this error on gradient and in DataCrunch. Is there something I’m not setting up properly, or has anyone had any similar problems?

Any help would be greatly appreciated, as I feel like I’m missing something obvious. Thankyou in advance!

7 Likes
2

Dear,

I am also having the same problem, I just made the environment and updated according to https://course.fast.ai/start_gradient#step-3--update-the-fastai-library,

I think is due to some recent commit in their git or a mistake in the library fastbook or fastai.

I will try resetting my paperspace machine and return if the error is solved

3

More details on the problem:

1 #hide
----> 2 from utils import *

/notebooks/course-v4/nbs/utils.py in
1 # Numpy and pandas by default assume a narrow screen - this fixes that
2 from fastai.vision.all import *
----> 3 from nbdev.showdoc import *
4 from ipywidgets import widgets
5 from pandas.api.types import CategoricalDtype

/opt/conda/envs/fastai/lib/python3.8/site-packages/nbdev/init.py in
5 if IN_IPYTHON:
6 from .flags import *
----> 7 from .showdoc import show_doc
8 #from .export import notebook2script

/opt/conda/envs/fastai/lib/python3.8/site-packages/nbdev/showdoc.py in
12 from nbconvert import HTMLExporter
13
—> 14 if IN_NOTEBOOK:
15 from IPython.display import Markdown,display
16 from IPython.core import page

NameError: name ‘IN_NOTEBOOK’ is not defined

4

I think I fixed the problem by running in terminal:

pip install nbdev --upgrade

then shutdown the notebook if running and re-open.

17 Likes
5

Thankyou so much! This seemed to work for me great!

6

Worked for me too! thanks!

7

Thank-you, that’s happened a couple of times now with DataCrunch too, and that process worked. I started the terminal and used the pip install nbdev --upgrade . Re-tried without shutting down the notebook, and it failed, but once I shutdown the notebook and restarted, it all worked. Many thanks.

1 Like
8

I am very happy that I managed to help some people! You guys are wonderful :slight_smile:

2 Likes
9

thank you I was having the same issue and this is the fix.

10

Thanks, this got the issue fixed :+1:t2:

11

Thanks, this worked for me!

12

Thanks, this worked for me as well!

13

This did not work for me.

Steps:
Updated to fastai/fastbook (using clean version)
Ran terminal pip install nbdev --upgrade
Ran terminal pip install fastai fastcore --upgrade
Shutdown notebook and re-open
(And even tried running the notebook instance again)

I still get
try: from nbdev.showdoc import *
17 except ModuleNotFoundError: warn(“Missing nbdev - please install it”)
18 try:

14

@GenralIntelligenceAI
Try changing the order in which you run the terminal commands.
I guess pip install nbdev --upgrade should come second, after you ran pip install fastai fastcore --upgrade first

15

try this article, it worked for me. it teaches how to setup in jupyter. all u need to do by yourself is start the geadient notebook, please respond if you have any issues, i will be checking my acccount regularly. https://towardsdatascience.com/deep-learning-projects-with-fastai-from-model-training-to-deployment-2be3135bd757 if u cannot view it from the link, head to twqittwer and send this link as a amessage to yourself and open it from the twitter inbox … cheers

16

I don’t know if this is a legit fix but I fixed it by editing show_doc.py and adding these two lines:

IN_NOTEBOOK = True
IN_IPYTHON = True
17

@LucasM Just created an account to let you know that this helped. Much thanks.

1 Like