Problem: Null outputs & Python Warnings! : How to fix?

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1

Most of the outputs of custom nodes and custom Python script in my Dynamo 1.0 display Null and Warnings please any suggestion for his problem !!?

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@catexis may be you know why ? :slight_smile:

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You’ll first need to study how the python node and the Revit API work. Here’s something to get you started:

http://dynamoprimer.com/09_Custom-Nodes/9-4_Python.html

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