Error 1667 When Using Python Node in LabVIEW

Updated Nov 25, 2020

Reported In


  • LabVIEW

Issue Details

When I use Python Node to call Python function in LabVIEW, it shows that the module cannot be found and getting the following error message:


Generally, the "Add python.exe to Path" option will not be selected by default when installing Python, and it will show a crossed status. Without this option, LabVIEW will display an error message. Please take the follow steps:
1.Reinstall Python and make sure to select the "Add python.exe to Path" option during installation.

2.After the installation is complete, open the command prompt to install the module as required. An example command is as follows: "pip2 install opencv-python".