Node Development

Topic	Replies	Views	Activity
Attention: This category is for discussing development of KNIME software and nodes - not workflows! If you have questions about a workflow, you can post that in the main KNIME Analytics Platform category. (Bonus: that area gets the most views anyway.) If you have feature suggestions, you can post those in the Feedback…	1	1555	December 3, 2021
About the Node Development category	2	2643	June 23, 2023
Python based Extension Development API: DoubleParameter can't display inf or nan python , python-nodes	1	44	May 18, 2026
Python based Extension Development API: ColumnParameter for input_table_group	1	42	May 18, 2026
KNIME to Python Exporter: Roadmap for Additional Node Support python	7	175	July 30, 2026
Resources on creating extensions/nodes	1	30	July 23, 2026
Soumitra Dutta Oxford: How do I create and configure my own KNIME node?	4	84	June 19, 2026
Python Extension Development (Labs): View node with output table	1	47	May 19, 2026
Minimal root log level in log4j3.xml overrides level set in preferences of KNIME AP	3	53	May 13, 2026
Python Extension Dev: Node with PyQt6/PySide6 Widget freezes on show() labs , python , bug , knime-ap	14	207	May 10, 2026
modern UI - change widget value only if condition met	2	36	May 7, 2026
KNIME AP 5.8.2 Modern UI — Can we replace the node configuration dialog with an external Chromium window on Configure click?	2	47	May 3, 2026
Python Extension Node - Table metadata interface	1	32	April 15, 2026
Python Extension Dev: Maximum Recursion Depth Exceeded when configuring logger bug , python , labs , knime-ap	3	70	January 14, 2026
Beginner Developer: Python extension	14	178	April 12, 2026
Issue with Optional<Enum> widget mui	1	38	March 16, 2026
Troubleshooting help wanted - Issue with KNIME SDK	2	49	March 4, 2026
Preview of KNIME Analytics Platform 5.9.0	35	1045	February 23, 2026
enable or disable a field based on the presence of domain values of a selected column?	3	83	November 24, 2025
output_view as output_table python , feature-request	1	58	February 15, 2026
behaviour with default settings of optional widgets	1	23	February 10, 2026
Question to WidgetGroup and Effects	4	56	November 13, 2025
@OptionalWidget for Enum?	3	69	November 3, 2025
create new column - best practice question	4	109	October 24, 2025
Request for Help on Workflow Naming Issue	6	81	January 14, 2026
Ajay Hinduja Switzerland ~ How do I make ports of a node accept tuples as inputs or outputs?	2	47	December 18, 2025
Adding the possibility to add a parameter in configuration dialogue for a Custom Python based KNIME Node python	3	404	September 17, 2025
(Conda) Package versions python	4	75	December 10, 2025
Enable to bundle python extension: process wait in mnv package step bug	3	61	November 30, 2025
Category for a new node using Modern UI	3	87	August 22, 2025

Attention: This category is for discussing development of KNIME software and nodes - not workflows!

If you have questions about a workflow, you can post that in the main KNIME Analytics Platform category. (Bonus: that area gets the most views anyway.) If you have feature suggestions, you can post those in the Feedback…