kevinaloys / procs

Python, Processes, and Prana.

Procs: Python, Processes, and... Pipes

Python's Subprocess module is well designed for lower functions. Pipes is designed to encourage higher functions.

Ideas

• Simple shelling out, allow argument seperation.

• command timeouts

• Process monitoring

• programatically compose a chain of streams.

• process call timeouts

• >>> uptime.stdout >> cowsay.stdin

Usage

Simple Usage:

>>> import procs

>>> c = procs.run('uptime')
>>> c.exit_code
0
>>> c.ok
True
>>> print c.stdout
16:08  up  1:16, 7 users, load averages: 1.02 1.90 1.75

Advanced Usage:

>>> chain = procs.chain()
>>> uptime = chain.process('uptime')
>>> cowsay = chain.process('cowsay')
>>> chain.link(uptime.stdout, cowsay.stdin)
>>> chain.start(wait=True)
>>> chain.wait()


>>> from procs import ProcessHandler

class MyCommmand(ProcessHandler):

    def __init__(self):
        pass

    def on_start(self):
        pass

    def on_exit(self):
        pass

    def on_crash(self):
        pass