Document workarounds for file upload size limit

Is there a size limit property in FileUpload widget or a restriction for big files? Using a FileUpload with a file of 6MB, I can access to data and value fields, but when I choose a file of 10MB counter changes but data and value fields are empty.

• python=3.6.7
• notebook=6.0.0
• ipywidgets=7.5.0

Using conda-forge channel (Anaconda) for installation.

[cosmoscalibur]

Yes, because with the popularity of Jupyter notebooks and now, the support of tools as voila to create web apps from notebooks, we can think in support upload of big files for analytics. For example, an image easily is bigger than 10 MB and a short video without codec applied also is bigger than 10 MB.
Also, for clarity, this is a limitation in the functionality of the widgets, and this is not mentioned.

[Alexboiboi]

Just generating the file jupyter_notebook_config.py with the modification mentioned above and leaving it inside the folder .jupyter does not work for me.

"websocket_max_message_size": 100 * 1024 * 1024

What is working for me is to copy the config file to the same folder as the notebook I working on. Then I launch the notebook using the config file.

jupyter notebook --config="jupyter_notebook_config.py" my_notebook.ipynb

I hope it helps

Cheers

Hi @danjmp, I tried to use your trick with voilà but sadly the widget still only accepts 10MB.

Is there any other workaround to make this work within a voilà app?

@jasongrout any thoughts ?