IPython/Extensions/jobctrl.py

""" Preliminary "job control" extensions for IPython 

requires python 2.4 (or separate 'subprocess' module

At the moment this is in a very "unhelpful" form, will be extended in the future.

Usage:

[ipython]|2> import jobctrl
[ipython]|3> &ls
         <3> <jobctrl.IpyPopen object at 0x00D87FD0>
[ipython]|4> _3.go
-----------> _3.go()
ChangeLog
IPython
MANIFEST.in
README
README_Windows.txt

...                     
"""                     

from subprocess import Popen,PIPE

from IPython import genutils

class IpyPopen(Popen):
    def go(self):
        print self.communicate()[0]

def job(job):
    #p = Popen(r"q:\opt\vlc\vlc.exe http://di.fm/mp3/djmixes.pls")
    p = IpyPopen(job, stdout=PIPE)
    p.line = job
    return p

def jobctrl_prefilter_f(self,line):    
    if line.startswith('&'):
        return 'jobctrl.job(%s)' % genutils.make_quoted_expr(line[1:])

    raise IPython.ipapi.TryNext

import IPython.ipapi
IPython.ipapi.get().set_hook('input_prefilter', jobctrl_prefilter_f)