For long-running scripts on Windows, use `subprocess.Popen` with `DETACHED_PROCESS` and `CREATE_NEW_PROCESS_GROUP`. Other methods can unexpectedly stop the script or lose output.
By Pawan Nayar · from the LLOS AI Learning record
For long-running scripts on Windows, use `subprocess.Popen` with `DETACHED_PROCESS` and `CREATE_NEW_PROCESS_GROUP`.
Other methods can unexpectedly stop the script or lose output.
Using `run_in_background:true` in a bash script on Windows will kill the Python process. This happens because the entire process group is stopped with the shell. PowerShell's `Start-Process` command can silently lose the script's output. The most reliable method is to use Python's `subprocess.Popen`. A developer must set specific creation flags. These flags are `DETACHED_PROCESS` and `CREATE_NEW_PROCESS_GROUP`. This ensures the script runs independently and its output is captured.
A developer creates a Python script to generate rare words. The developer tries to run it in the background on Windows using a bash script. After about 150 batches, the script stops unexpectedly. The developer then uses `subprocess.Popen` with the correct flags. The script runs continuously without stopping and logs all its output.
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The AI model needs good examples to learn from. Do not give the AI model general instructions like 'use basic SVG elements'.
A developer can start by manually creating icons. This helps understand the design needs.
For long-running scripts on Windows, use `subprocess.Popen` with `DETACHED_PROCESS` and `CREATE_NEW_PROCESS_GROUP`. Other methods can unexpectedly stop the script or lose output.