cgi-script shell script wrapping question

[Dov Grobgeld]

Thanks for the help! Based on it I tried running the command with python as
follows:

import subprocess

pipe = subprocess.Popen("do_slow_command 2>&1",
         bufsize=1,
         stdout=subprocess.PIPE,
         stdin=subprocess.PIPE,
         shell=True)

for p in pipe.stdout.readlines():
    print p,"<br>\n"

According to the subprocess documentation, this is supposed to set up line
by line mode. But I still get things buffered up. But perhaps that is
because I did not tell "do_slow_command" to flush after print command, and
it senses that it is not being run under a terminal? I'll try that.

Dov


On Mon, Dec 27, 2010 at 20:08, ik <idokan at gmail.com> wrote:

> 2010/12/27 shimi <linux-il at shimi.net>
>
>
>>
>> 2010/12/27 Dov Grobgeld <dov.grobgeld at gmail.com>
>>
>>> I'm trying to write a cgi wrapper for a long running command. The command
>>> takes about 10minutes to execute and when running it from the command line
>>> it continously outputs text to stdout. A simplistic cgi-bin wrapper that
>>> tries to execute the script and then writes that it is done fails with the
>>> following message:
>>>
>>>
>>>  Timeout waiting for output from CGI script ...
>>>
>>> What I wonder if there is any easy way to have continously update the web
>>> page with stdout of the script.
>>>
>>> One way, I guess would be to run the script in a separate thread and just
>>> do HTML reload on a static page which I would regenaret with the stdout
>>> generated so far.
>>>
>>> Is there any other simple solution?
>>>
>>>
>> You could increase the timeout to be > running time of the script ...
>>
>
> Do not forget that you also have timeout of the web browser that you can
> not control (you can not control the users themselves).
>
>
>>
>> -- Shimi
>>
>
> Ido
>
>
>>
>>
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