Name 'widgets' is not defined & taking lot of time to run the fastbook ch-1 on colab

fastai
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See the recent post in v2 chat. Most likely the wrong torch version is installed. Also widgets will not work in colab.

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Were you able to solve this?

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Widgets do not work in Colab (as my previous post states). If it takes a long time to train make sure you have the GPU enabled and torch.cuda.is_available() returns true

1 Like
5

Greetings!
How do I solve the first error i.e. NameError?

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You can’t run the widgets section inside Google Colab, so there is no working solution. As I said in the first sentence and my first post.

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It just happened to me in paperspace: https://nmf7d80p.gradient.paperspace.com/notebooks/fastbook/01_intro.ipynb

I searched for information about widgets in jupyter and gradient and found this:

https://ipywidgets.readthedocs.io/en/stable/examples/Widget%20Basics.html

Using that information I added the following line:

import ipywidgets as widgets

to the existing code so that it is now:

#hide_output
import ipywidgets as widgets
uploader = widgets.FileUpload()
uploader

and it ran and I could upload my image. So, if others are having that problem, try adding that import statement.

31 Likes
9

I had this issue on Paperspace too and this did the trick. Thanks @jeffbiss!

1 Like
10

Good to hear that I was able to help someone! You’re welcome.

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Saved me too, thanks!

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This solution worked for me but then I had this error in the next bit of code

NameError: name ‘SimpleNamespace’ is not defined

Is there some kind of compatibility error going on? Super discouraging to have wrenches thrown into your very first examples.

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Depending on what I missed, I had other errors, don’t remember if that was one though. I suggest to start at the very beginning and run each bit of code, maybe you missed one and that lead to that error, I know that that was the case for me. Try it and let us know if it clears up or not.

1 Like
14

This worked for me too, thanks!

15

OK, thanks.

16

Thanks … I had the same problem and this solution worked for me.

17

It was so helpful. Thanks a lot

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First write the following code :
from fastbook import *
After this write the code for widgets.FileUpload()

1 Like
19

What a lifesaver! Thanks a ton @jeffbiss

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You’re welcome! I’m just glad that I am actually able to help.

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jeffbliss, thank you! This solved the issue in SageMaker as well.

Best
PO

1 Like
23

Thanks! Worked like a charm :slight_smile: