Bug since 4.2.2 ( python node + extract context properties )

Hello,
Since I upgraded to 4.2.2 , when I run a python node after a “Extract Context Properties” node, it crashes.

I think this is because of the empty string variable “context.job.id”

I don’t know which of those two nodes need to be fixed, maybe both, or maybe Knime’s tolerance to empty variables should be adapted.

Please find hereby a minimal workflow showcasing the problem.
python_bug.knwf (11.0 KB)
Br,
Sébastien

1 Like

Hi Sébastien,
Thanks for reporting this! I can reproduce this issue and have created an internal ticket (number AP-15256). It is a problem with the Python serialization code but should not be too difficult to fix.
Kind regards,
Alexander

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Hi Sébastien,
Our developers recommend the following quick short-term workaround: in the Extract Context Properties list, disable the setting for “Extract all available properties” but keep context.job.id in the “Include” list.
Kind regards,
Alexander

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