Launch Python script

[V.Life]

Hello, I need to lauch a Python script form Labview. Where I can find a procedure or example that lists all necessary operation to do it? Thank

[santo_13]

Do you just want to launch as if you were calling it from command prompt?

If yes, you need to use System Execute VI

https://www.ni.com/docs/en-US/bundle/labview-api-ref/page/vi-lib/platform/system-llb/system-exec-vi....

[V.Life]

Thank you. Probably I managed to launch the script (I have no Labview errors).

This script print a PASS/FAIL string in the command windows (I tried form Windows, with command prompt).

How can I get the string that is printed by the script?

[GerdW]

Hi V.,

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@V.Life wrote:

Probably I managed to launch the script (I have no Labview errors).

This script print a PASS/FAIL string in the command windows (I tried form Windows, with command prompt).

How can I get the string that is printed by the script?

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• How did you call the Python script?
• Which LabVIEW version do you use?
• Can you use those CallPython nodes in recent LabVIEW versions?
• Did you search in the example finder for example VIs on those CallPython nodes?

The CallPython node would allow you to (easily) send/receive data to/from your Python code!

[V.Life · Accepted solution]

I used System Execute. Labview is version 2023 Q3. Is it possible to use the "Standard Output" line of the System Exec function to get all data printed by script (it is composed by more lines of text)?

[GerdW]

Hi V.,

have you tried the Python node yet?

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@V.Life wrote:

I used System Execute.

Is it possible to use the "Standard Output" line of the System Exec function to get all data printed by script…?

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Have you tried? It is as simple as connecting a string indicator!