Using KNIME Workflows in Jupyter Notebooks

[pujappathak]

I am not able to integrate the dataframe in python as input to my knime workflow. Need some clarity on this. Tried Container Input and Output tables but still not working.

[steffen_KNIME]

Hi @pujappathak and welcome back!

Please have a close look here and give some more details afterwards:

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Steffen

[mlauber71]

@pujappathak if you want to transfer data between knime and Jupyter notebooks you might want to take a look:

How to execute Jupyter notebook

@hhkim you could check this example how to use KNIME and Jupyter. And also how to transfer files between them.

UnicodeEncodeError: 'charmap' codec can't encode characters

OK I have added a part to the workflow where KNIME, Python and Jupyter would communicate with each other. ‘Variables’ can be exchanged via a file and also data can be transferred via Parquet files. It would be great though to be able to transfer ‘real’ variables between KNIME and Jupyter (like in this idea). [image] Unfortunately on my Mac the export thru the new Python integration produces a strange error about index when trying to access the results. Some nodes (like Group by) although wou…

[pujappathak]

Hi @mlauber71,

This is my workflow that I called from knime

How do I load the output of my workflow to a dataframe in python?

Thanks

[mlauber71]

@pujappathak you might have to use the Parquet writer and import the file in your Jupyter notebook.

Parquet file format, KNIME and Jupyter notebook – mlauber71