Access the data area from within Python script

[d3n1s]

Hi all,

is it possible to access the data area of the workflow from within a Python script node? I have two cases when I need to do that:

• Python produces ppt file that needs to be made available for download in the GUI.
• Need to read some png files from the data area (could not find a good way to pass the tables with the images into a pandas df, if I read the pngs before the Python node)

Any hints or workarounds are highly appreciated.

Thanks

[mlauber71]

@d3n1s you can construct an absolute path to the data area and pass that to Phyton

KNIME Community Hub

Also in a Data App you can offer a filter to download:

Line Plot Readability Fix

@rogerius1st well we have been there before There is no big Python installation involved just the Python extension of KNIME that will contain all the necessary packages. The small Data App contains all the necessary settings to take care of the angles of the descriptions and the scale. So why not give it a try? You also get a .PNG file that you can then re-use. All descriptions are there to be configured in the data app … [image] You can adapt the color of the lines (the colu…

Reference Column Filter with 'dynamic' reference table

@Kazimierz I have built a demo that would illustrate how such a system could work. The interface of the component would look like this: [image] you select the item the list of columns belonging to the item are dynamically selected the basic table is filtered by the Item and only the referenced columns are being selected When you press the Execute button the select would happen. And an Excel file with the data and the selected columns would be prepared. Also the results will be available fur…