Python Threads: Daemon vs Non-Daemon, Join vs No Join (4 Scenarios Demo)
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If the thread is non-daemon and not joined, the worker keeps running even after the main thread finishes, because non-daemon threads prevent the program from exiting until they complete. If the thread is non-daemon and joined, the main thread waits for the worker to finish all its work before continuing, so the program exits only after the worker is done. If the thread is daemon and not joined, the worker will be killed as soon as the main thread ends — you may see only part of its output or none at all, since daemon threads don’t keep the program alive. Finally, if the thread is daemon and joined, the main thread still waits for it to finish (because join() enforces waiting), so in practice it behaves just like a non-daemon joined thread, running the worker fully before exit.
https://github.com/djeada/Parallel-An...
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