Re: [Pyst-users] trouble with external command

[Daniel S. <da...@se...>]

Try passing the full path for ‘squeezy’.

On Apr 20, 2014, at 3:07 AM, Michael Belleville <mbe...@gm...> wrote:

> ok, I redirected stderr to a file, here it is:
> begin log____________________________________________________________________
> Traceback (most recent call last):
>   File "/var/lib/asterisk/agi-bin/voicecmd_py.agi", line 76, in <module>
>     check_call([cmd,arg1,arg2], shell=False)
>   File "/usr/lib64/python2.6/subprocess.py", line 500, in check_call
>     retcode = call(*popenargs, **kwargs)
>   File "/usr/lib64/python2.6/subprocess.py", line 478, in call
>     p = Popen(*popenargs, **kwargs)
>   File "/usr/lib64/python2.6/subprocess.py", line 642, in __init__
>     errread, errwrite)
>   File "/usr/lib64/python2.6/subprocess.py", line 1234, in _execute_child
>     raise child_exception
> OSError: [Errno 2] No such file or directory
> ___________________________________________________________________________
> end log
> 
> 
> and here is the agi itself:
> begin script__________________________________________________________________
> #!/usr/bin/env python
> 
> 
> from subprocess import *
> from asterisk.agi import *
> import os
> import sys
> 
> sys.stdout = open('/tmp/pyoutfile', 'w')
> sys.stderr = open('/tmp/pyerrfile', 'w')
> 
> 
> #print "hello"
> 
> 
> #def main():
> agi = AGI()
> agi.verbose("python agi started", 1)
> callerId = agi.env['agi_callerid']
> agi.verbose("call from %s" % callerId)
> 
> cmd = agi.env['agi_arg_1']
> agi.verbose("command text: %s" % cmd)
> cmd = cmd.lower()
> 
> words = cmd.split()
> for word in words:
> 
>      agi.verbose("word: %s" % word)
> 
> if any("theater" in s for s in words):
> 	room = "theater"
> elif any("kitchen" in s for s in words):
>         room = "kitchen"
> elif any("master" in s for s in words):
>         room = "masterbedroom"
> elif any("season" in s for s in words):
>         room = "3season"
> elif any("outside" in s for s in words):
>         room = "deck"
> else:
> 	room = "none"
> 
> if any("light" in s for s in words):
>         item = "light"
> elif any("music" in s for s in words):
>         item = "music"
> else:
>         item = "none"
> 
> 
> if any("off" in s for s in words):
>         value = "off"
> elif any("medium" in s for s in words):
>         value = "medium"
> elif any("on" in s for s in words):
>         value = "on"
> else:
>         value = "none"
> 
> 
> agi.verbose("room: %s" % room)
> agi.verbose("item: %s" % item)
> agi.verbose("value: %s" % value)
> 
> if (item == "music") and (value == "on" or value == "off") and (not room == "none"):
> 	fullcmd = "squeezy" + " -" + room + " -" + value
> 	cmd = "squeezy" 
> 	arg1 = "-" + room
> 	arg2 = "-" + value
> 	agi.verbose(cmd)
> 	agi.verbose(arg1)
> 	agi.verbose(arg2)
> 	agi.verbose(fullcmd)
> 	#out = os.system(fullcmd)
> 	check_call([cmd,arg1,arg2], shell=False)
> 
> 
> agi.verbose("python agi ended")  
> ________________________________________________________________________
> end script
> 
> 
> 
> if I run this in an outside python script it works just fine, no errors, I've run it as asterisk and root 
> begin script_________________________________________________________________
> #!/usr/bin/env python
> 
> from subprocess import *
> import os
> 
> cmd = "turn outside music on"
> 
> words = cmd.split()
> for word in words:
> 
>      print "word: %s" % word
> 
> if any("theater" in s for s in words):
> 	room = "theater"
> elif any("kitchen" in s for s in words):
>         room = "kitchen"
> elif any("outside" in s for s in words):
>         room = "deck"
> else:
> 	room = "none"
> 
> if any("light" in s for s in words):
>         item = "light"
> elif any("music" in s for s in words):
>         item = "music"
> else:
>         item = "none"
> 
> 
> if any("off" in s for s in words):
>         value = "off"
> elif any("medium" in s for s in words):
>         value = "medium"
> elif any("on" in s for s in words):
>         value = "on"
> else:
>         value = "none"
> 
> 
> print "room: %s" % room
> print "item: %s" % item
> print "value: %s" % value
> 
> if (item == "music") and (value == "on" or value == "off") and (not room == "none"):
>         fullcmd = "squeezy" + " -" + room + " -" + value
>         cmd = "squeezy"
>         arg1 = "-" + room
>         arg2 = "-" + value
>         #os.system(fullcmd)
>         check_call([cmd,arg1,arg2],shell=False)
> ___________________________________________________________________________
> end script
> 
> 
> On Sun, Apr 20, 2014 at 2:39 AM, Michael Belleville <mbe...@gm...> wrote:
> I've tried using both os.system as well as subprocess.call to invoke an external command that is not working for me.  It has something to do with the command I am trying to run, which is squeezy, a command line interface for logitech media center.
> 
> I've been able to use os.system as well as subprocess.call successfully in an agi using other commands, but not squeezy.  
> 
> I can get squeezy to work using both os.system as well as subprocess.call in an external python script if I copy out the revelant chunk of code, but it will not work in an agi.  It works in an external python script if I run it as either root or asterisk, so I don't think it is a permissions issue...
> 
> If I try to run squeezy in the agi using subprocess.call or subprocess.check_call, the python agi dies right there 
> 
> if I use os.system, the command still doesn't run as expected, but the agi continues normally.
> 
> I don't know how to capture any useful output since the agi dies if I try to use subprocess.check_call.  
> 
> I don't see any of the regular python error messages in my asterisk CLI output, the only output I see I generate myself with agi.verbose
> 
> How can I get to what is happening in the agi?  Can the python errors/output be redirected somewhere I can see them?  I have been debugging my issues using external python scripts to test, but in this case my issue goes away in the external script...
> 
> I would appreciate any advice :)
> 
> thank you very much to all for the wonderful piece of software, it is so nice to be able to use python for agi scripts!
> 
> ------------------------------------------------------------------------------
> Learn Graph Databases - Download FREE O'Reilly Book
> "Graph Databases" is the definitive new guide to graph databases and their
> applications. Written by three acclaimed leaders in the field,
> this first edition is now available. Download your free book today!
> http://p.sf.net/sfu/NeoTech_______________________________________________
> Pyst-users mailing list
> Pys...@li...
> https://lists.sourceforge.net/lists/listinfo/pyst-users