pidlock
Simple PID based locking for cronjobs, UNIX scripts or python programs. Copes with locking between hosts.
Requirement
- requires python3
Usage
- Install with pip
sudo pip install -U pidlock
- Use it from inside python script
import time
from pidlock import PIDLock
locker = PIDLock()
with locker.lock('sleepy_script'):
time.sleep(10)
- Use it as commandline/cron job
# To display help menu
pidlock -h # Or pidlock --help
# Example usage
pidlock -n sleepy_script -c 'sleep 10'
# Same as
pidlock --name sleepy_script --command 'sleep 10'
Customization:
- You can pass PID file location, verbosity, time limit and minimum interval as arguments
# Python Usage
locker = PIDLock(lockdir='~/.pidlock', verbose=True)
with locker.lock('sleepy_script', wait=10, mininterval=1):
time.sleep(10)
# Commandline usage
pidlock -n sleepy_script -c 'sleep 10' -l ~/.pidlock -v -w 10 -m 1
# Same as
pidlock --name sleepy_script --command 'sleep 10' --lockdir ~/.pidlock --verbose --wait 10 --mininterval 1
Contributions
Originally written and published by Arijit Basu. Adaptation to cope with race conditions by Keiran Raine (ongoing owner/support).
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