[Tutor] Repeat function until...

[Sithembewena Lloyd Dube]

^^ I meant time.sleep(x), rather. Please excuse the double post.

On Wed, Jun 23, 2010 at 4:29 PM, Sithembewena Lloyd Dube
<zebra05 at gmail.com>wrote:

> My two cents' worth added below. Seems to do what you want. You probably
> want to call sys.wait(x) after printing an error, so it can be read before
> exiting?
>
> import os, sys, time
>
>
> def check(host):
>    try:
>        output = os.popen('ping -ns 1 %s' % host).read()
>        alive = output.find('Reply from')
>        print alive
>        if alive is -1:
>            print '%s \t\t DOWN ' % host
>        else:
>            print '%s \t\t OK' % host
>
>    except OSError, e:
>        print e
>        sys.exit()
>
>    while alive != -1:
>        try:
>            time.sleep(4)
>            check(host)
>
>        except KeyboardInterrupt, k:
>            sys.exit()
>
> def get_command():
>     prompt = input('Start now? Use 1 to start or 0 to exit.\n')
>     return prompt
>
> if __name__ == '__main__':
>     cmd = get_command()
>     if cmd == 1:
>         check('localhost')
>
>     elif cmd == 0:
>         sys.exit()
>
>     else:
>         get_command()
>
> On Wed, Jun 23, 2010 at 2:29 PM, Nethirlon . <nethirlon at gmail.com> wrote:
>
>> Hello everyone,
>>
>> I'm new at programming with python and have a question about how I can
>> solve my problem the correct way. Please forgive my grammar, English
>> is not my primary language.
>>
>> I'm looking for a way to repeat my function every 30 seconds.
>>
>> As an example I have written a ping function. But I would like this
>> function to repeat itself every 30 seconds, without stopping until I
>> give it a STOP command (if such a thing exists.)
>>
>> Code:
>> import os, sys
>>
>> def check(host):
>>    try:
>>        output = os.popen('ping -ns 1 %s' % host).read()
>>        alive = output.find('Reply from')
>>        print alive
>>        if alive is -1:
>>            print '%s \t\t DOWN ' % host
>>        else:
>>            print '%s \t\t OK' % host
>>    except OSError, e:
>>        print e
>>        sys.exit()
>>
>> check('www.google.com')
>>
>> Let me know if anything is unclear or if there are other
>> recommendations about doing some parts different.
>>
>> Kind regards,
>> Nethirlon
>> _______________________________________________
>> Tutor maillist  -  Tutor at python.org
>> To unsubscribe or change subscription options:
>> http://mail.python.org/mailman/listinfo/tutor
>>
>
>
>
> --
> Regards,
> Sithembewena Lloyd Dube
> http://www.lloyddube.com
>



-- 
Regards,
Sithembewena Lloyd Dube
http://www.lloyddube.com
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