Using Multiprocessing

When building as a standalone app, pytauri will automatically configure the following to support the use of multiprocessing:

ref: pytauri::standalone::PythonInterpreterBuilder

• Set sys.frozen to True
• Call multiprocessing.set_start_method with
  • windows: spawn
  • unix: fork
• Call multiprocessing.set_executable with std::env::current_exe()

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What you need to do is call multiprocessing.freeze_support in __main__.py or in the if __name__ == "__main__": block.

If you don't do this, you will get an endless spawn loop of your application process.

See: https://pyinstaller.org/en/v6.11.1/common-issues-and-pitfalls.html#multi-processing.