[Tkinter-discuss] Dynamic output of "DOS" command in tkinter

[AbsoluteMatt]

Hi Martin,

Thanks for your reply, I actually started trying to do this with popen, but
didn't pursue it as I wasn't sure that it would work this way. Now that you
have confirmed that it can be done like this, I will continue on this path
(and will read up on subprocess etc as well :-)). Thinking about it my
question would have probably sat better in a python forum, but I got the
answer/direction I needed so no regrets.

Cheers,

Matt




Martin Franklin wrote:
> 
> AbsoluteMatt wrote:
>> Hi Guys,
>> 
>> This is my first post here and my first time developing a tkinter app -
>> so
>> please go easy:-) I have to say I have found it really nice so far, but
>> am
>> struggling on one point. 
>> 
>> What I want to be able to do is take a system command and "pipe" it to a
>> scrollable window, however I would like it to follow the execution of the
>> command dynamically. The command that I am running is not one that will
>> execute in a few seconds allowing me to send the result to a scrollable
>> window - which I understand how to do. 
>> The link below shows an example of someone doing this:
>> http://mail.python.org/pipermail/python-list/2004-September/281344.html
>> 
>> What I am actually doing is running an oracle IMP command and would like
>> to
>> follow the imported tables/rows etc from the app
>> 
>> Any suggestion about how to display in this way do this would be much
>> appreciated.
>> 
>> Many Thanks,
>> 
>> Matt
>> 
>> 
> 
> Hi Matt,
> 
> this is not so much a tkinter problem, more a subprocess / popen thing :)
> 
> I've done this in the past with a simple while 1: loop...
> 
> 
> proc = os.popen("imp big_oracle_xport_file.exp")
> 
> while 1:
>      line = proc.readline()
>      if not line:
>          break
>      textBox.write(line)
> 
> of course this will block and wait for the command to write another line 
> to stdout... I'm sure there are better ways to do this by now, its been 
> a while since I looked at the popen family (subprocess module now too I 
> think...?) in any case the main python list would be my next stop after 
> I checked the python doc's for popen, subprocess, command etc etc :)
> 
> Cheers
> Martin
> 
> -- 
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