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Q&A How can a Python program send itself to the background?

Use os.fork(). Example: import os import time pid = os.fork() if pid == 0: os.setsid() # Prevents the child from being killed if the parent dies time.sleep(10) os.system('some...

posted 9mo ago by r~~‭

Answer
#1: Initial revision by user avatar r~~‭ · 2023-08-23T01:05:41Z (9 months ago)
Use [`os.fork()`](https://docs.python.org/3/library/os.html#os.fork).

Example:

```python
import os
import time

pid = os.fork()
if pid == 0:
    os.setsid() # Prevents the child from being killed if the parent dies
    time.sleep(10)
    os.system('some_cmd')
os._exit(os.EX_OK) # This is important after a fork; otherwise Python cleans up its children
```