asterisk users - Jun 2007 - STDERR in AGI

Hi all,

I just started programming using AGI and I have a simple question about 
STDERR.
If I understood it right, all the messages sent to "STDERR" should be 
shown in the Asterisk console, but using the following python code I 
just can't see anything.

#!/usr/bin/python
#
#       File: /var/lig/asterisk/agi-bin/agi-test.py
#
#       Description: An AGI Script
#

import sys

env = {}
tests = 0

while True:
        line = sys.stdin.readline().strip()
        if line == '':
                break
        key,data = line.split(':')
        if key[:4] != 'agi_':
                sys.stderr.write("Did not work!\n")
                sys.stderr.flush()
                continue
        key = key.strip()
        data = data.strip()
        if key != '':
                env[key] = data

sys.stderr.write("AGI Environment Dump:\n")
for key in env.keys():
        sys.stderr.write(" -- %s = %s\n" % (key,env[key]))
        sys.stderr.flush()

##########################################################################

This code comes from the book "Asterisk: The future of the Internet"
and
it is being activated by an extension like that:

exten => 123,1,Answer()
exten => 123,2,AGI(agi-test.py)

Any help would be appreciated.

Ronaldo.

Ronaldo Z. Afonso wrote:
> Hi all,
>
> I just started programming using AGI and I have a simple question about 
> STDERR.
> If I understood it right, all the messages sent to "STDERR"
should be
> shown in the Asterisk console, but using the following python code I 
> just can't see anything.
>
> #!/usr/bin/python
> #
> #       File: /var/lig/asterisk/agi-bin/agi-test.py
> #
> #       Description: An AGI Script
> #
>
> import sys
>
> env = {}
> tests = 0
>
> while True:
>         line = sys.stdin.readline().strip()
>         if line == '':
>                 break
>         key,data = line.split(':')
>         if key[:4] != 'agi_':
>                 sys.stderr.write("Did not work!\n")
>                 sys.stderr.flush()
>                 continue
>         key = key.strip()
>         data = data.strip()
>         if key != '':
>                 env[key] = data
>
> sys.stderr.write("AGI Environment Dump:\n")
> for key in env.keys():
>         sys.stderr.write(" -- %s = %s\n" % (key,env[key]))
>         sys.stderr.flush()
>
> ##########################################################################
>
> This code comes from the book "Asterisk: The future of the
Internet" and
> it is being activated by an extension like that:
>
> exten => 123,1,Answer()
> exten => 123,2,AGI(agi-test.py)
>
> Any help would be appreciated.
>
> Ronaldo.
>
>
>
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>   
STDERR goes to console.

On 6/21/07, Ronaldo Z. Afonso <ronaldoafonso at gmail.com>
wrote:
> I just started programming using AGI and I have a simple question about
> STDERR.
> If I understood it right, all the messages sent to "STDERR"
should be
> shown in the Asterisk console, but using the following python code I
> just can't see anything.
Things written to STDERR only go to the console on which Asterisk was
started.  If you're using the stock safe_asterisk script to start
Asterisk, this would end up being TTY 9.  You may want to use the
VERBOSE command instead, so that information is logged to the Asterisk
command-line interface.

-Jared