Python: module for creating PID-based lockfile?

Question

I\'m writing a Python script that may or may not (depending on a bunch of things) run for a long time, and I\'d like to make sure that multiple instances (started via cron)

Answer 1

I believe you will find the necessary information here. The page in question refers to a package for building daemons in python: this process involves creating a PID lockfile.