Using threading to run scripts autonomously

Threading allows your Python code to run autonomously in the background, without requiring an input state change to run it. Code inside a thread will run independently of all other Python code in the project – this includes code inside the same Live Python block, or inside other Live Python blocks.

Threaded Python scripts are not triggered by values received on the inputs of the Live Python device. They start running automatically, as soon as the NWare project is deployed.

Example applications for threaded scripts include:

• Automatic muting of the audio outputs until the power up sequence has completed.
• Watching multiple controls independently, and performing different actions depending on the values.

  Notes:

  • Threading is an advanced feature that must be used carefully. If not structured correctly, threaded code can consume all the available resources on the node hosting the project, and prevent the project from running.
  • Threading must be enabled on the Device Properties of the Live Python block. It is not supported by default.