daemoniker

0.2.3 verified Fri May 01 auth: no python maintenance

Cross-platform daemonization tools for Python, supporting Windows via win32service and Unix via traditional forking. Current version 0.2.3, last released in 2018. Low release cadence, effectively in maintenance mode.

pip install daemoniker

Common errors

error ModuleNotFoundError: No module named 'win32serviceutil' ↓

cause pywin32 not installed on Windows.

fix

pip install pywin32

error ImportError: cannot import name 'SIGBREAK' from 'daemoniker' ↓

cause Older version (<0.2) may not have SIGBREAK, or signal constants are not exported.

fix

Upgrade daemoniker: pip install --upgrade daemoniker

error AttributeError: module 'daemoniker' has no attribute 'Daemonizer' ↓

cause Due to a packaging bug, importing daemoniker directly may not expose all names. Use correct import path.

fix

Use: from daemoniker import Daemonizer

Warnings

gotcha On Windows, the daemoniker requires pywin32. Install with 'pip install pywin32' and ensure it's importable. The service will fail silently if missing. ↓

fix Install pywin32: pip install pywin32

gotcha Daemonizer must be used as a context manager (with statement). Calling __init__ without the context manager will not daemonize the process. ↓

fix Use 'with Daemonizer():'

gotcha On Unix, SIGBREAK is defined but not a standard signal. Using it may cause unexpected behavior. Prefer SIGTERM or SIGINT. ↓

fix Use signal.SIGTERM instead if you need custom shutdown.

Imports

Daemonizer
```
from daemoniker import Daemonizer
```
SIGBREAK
```
from daemoniker import SIGBREAK
```

Quickstart

Basic daemonizing a background loop. On Unix, fork and detach; on Windows, runs as a service.

from daemoniker import Daemonizer
import time

with Daemonizer():
    while True:
        with open('/tmp/daemoniker.log', 'a') as f:
            f.write('Daemon running\n')
        time.sleep(5)