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Python Process Run Control

Project Description

This module provides convenient ways to guarantee a certain script state.

run.alone

Make sure only one instance of the program is running, this is done by acquiring an fcntl file lock on the current script:

>>> import run.alone

Caveats

There are a few things to keep in mind:

  1. import run.alone once, it will exit your program if it gets imported twice
  2. symlinked scripts will be resolved to the inode it has been linked to, this is a limitiation of using fcltn file locks

run.until

Run until a specified timespec, if the process runs longer, it will be killed:

>>> import run
>>> run.until('23m42s')
>>> ...

You can also choose to limit on the amount of CPU-time being consumed (default is wall clock time):

>>> run.until('42s', 'cpu')
>>> ...

Acknowledgements

This module is dirived from the Sys::RunAlone and Sys::RunUntil perl modules written by Elizabeth Mattijsen.

Release history Release notifications

This version
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0.2

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0.1

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Filename, size & hash SHA256 hash help File type Python version Upload date
run-0.2.tar.gz (3.2 kB) Copy SHA256 hash SHA256 Source None Apr 22, 2010

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