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logging, can one get it to email messages over a certain level?

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  logging, can one get it to email messages over a certain level? tinnews@isbd.co.uk - 2012-11-11 17:42 +0000
    Re: logging, can one get it to email messages over a certain level? Steve Howell <showell30@yahoo.com> - 2012-11-11 09:56 -0800
      Re: logging, can one get it to email messages over a certain level? tinnews@isbd.co.uk - 2012-11-12 09:44 +0000
        Re: logging, can one get it to email messages over a certain level? Peter Otten <__peter__@web.de> - 2012-11-12 11:54 +0100
          Re: logging, can one get it to email messages over a certain level? tinnews@isbd.co.uk - 2012-11-12 11:36 +0000

#33137 — logging, can one get it to email messages over a certain level?

I'm sure this must be possible but at the moment I can't see how to do it.

I want to send an E-Mail when the logging module logs a message above
a certain level (probably for ERROR and CRITICAL messages only).

I.e. I want some sort of hook that will be called when these messages
are logged (I can do the sendmail bit OK, I've got code that does that).

-- 
Chris Green

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#33138

On Nov 11, 9:48 am, tinn...@isbd.co.uk wrote:
> I'm sure this must be possible but at the moment I can't see how to do it.
>
> I want to send an E-Mail when the logging module logs a message above
> a certain level (probably for ERROR and CRITICAL messages only).
>
> I.e. I want some sort of hook that will be called when these messages
> are logged (I can do the sendmail bit OK, I've got code that does that).
>
> --
> Chris Green

Scroll down to the Handlers section here:

   http://docs.python.org/2/howto/logging.html#logging-basic-tutorial

I'm not sure this explains perfectly what you're gonna need to do, but
I hope it gets you in the ballpark.

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#33170

Steve Howell <showell30@yahoo.com> wrote:
> On Nov 11, 9:48 am, tinn...@isbd.co.uk wrote:
> > I'm sure this must be possible but at the moment I can't see how to do it.
> >
> > I want to send an E-Mail when the logging module logs a message above
> > a certain level (probably for ERROR and CRITICAL messages only).
> >
> > I.e. I want some sort of hook that will be called when these messages
> > are logged (I can do the sendmail bit OK, I've got code that does that).
> >
> > --
> > Chris Green
> 
> Scroll down to the Handlers section here:
> 
>    http://docs.python.org/2/howto/logging.html#logging-basic-tutorial
> 
> I'm not sure this explains perfectly what you're gonna need to do, but
> I hope it gets you in the ballpark.
> 
Thank you, but yes I agree it's not terribly informative is it.

However I think I understand what I need to do.  I currently have a
function to set up my logging:-

    def initLog(name):
        log = logging.getLogger(name)
        log.setLevel(logging.DEBUG)
        f = logging.handlers.RotatingFileHandler("/home/chris/tmp/mail.log", 'a', 1000000, 4)
        f.setLevel(logging.DEBUG)
        formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
        f.setFormatter(formatter)
        log.addHandler(f)
        return log

As I understand it I just add another line like the 'f =' line but
using the SMTPHandler and then set an appropriate level for that
handler (and formatting).


-- 
Chris Green

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#33173

tinnews@isbd.co.uk wrote:

> Steve Howell <showell30@yahoo.com> wrote:
>> On Nov 11, 9:48 am, tinn...@isbd.co.uk wrote:
>> > I'm sure this must be possible but at the moment I can't see how to do
>> > it.
>> >
>> > I want to send an E-Mail when the logging module logs a message above
>> > a certain level (probably for ERROR and CRITICAL messages only).
>> >
>> > I.e. I want some sort of hook that will be called when these messages
>> > are logged (I can do the sendmail bit OK, I've got code that does
>> > that).
>> >
>> > --
>> > Chris Green
>> 
>> Scroll down to the Handlers section here:
>> 
>>    http://docs.python.org/2/howto/logging.html#logging-basic-tutorial
>> 
>> I'm not sure this explains perfectly what you're gonna need to do, but
>> I hope it gets you in the ballpark.
>> 
> Thank you, but yes I agree it's not terribly informative is it.

Here's a minimal example:

import logging
from logging.handlers import SMTPHandler

if __name__ == "__main__":
    logging.basicConfig(level=logging.INFO)

    mail_handler = SMTPHandler(
        "smtp.example.com",
        "navigator@example.com",
        "captain.nemo@example.com",
        "fyi")
    mail_handler.setLevel(logging.CRITICAL)

    root = logging.getLogger()
    root.addHandler(mail_handler)

    # will print amessage
    root.warn("this is fishy") 

    # will print a message and send an email
    root.critical("giant squid sighted")

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#33177

Peter Otten <__peter__@web.de> wrote:
> tinnews@isbd.co.uk wrote:
> 
> > Steve Howell <showell30@yahoo.com> wrote:
> >> On Nov 11, 9:48 am, tinn...@isbd.co.uk wrote:
> >> > I'm sure this must be possible but at the moment I can't see how to do
> >> > it.
> >> >
> >> > I want to send an E-Mail when the logging module logs a message above
> >> > a certain level (probably for ERROR and CRITICAL messages only).
> >> >
> >> > I.e. I want some sort of hook that will be called when these messages
> >> > are logged (I can do the sendmail bit OK, I've got code that does
> >> > that).
> >> >
> >> > --
> >> > Chris Green
> >> 
> >> Scroll down to the Handlers section here:
> >> 
> >>    http://docs.python.org/2/howto/logging.html#logging-basic-tutorial
> >> 
> >> I'm not sure this explains perfectly what you're gonna need to do, but
> >> I hope it gets you in the ballpark.
> >> 
> > Thank you, but yes I agree it's not terribly informative is it.
> 
> Here's a minimal example:
> 
> import logging
> from logging.handlers import SMTPHandler
> 
> if __name__ == "__main__":
>     logging.basicConfig(level=logging.INFO)
> 
>     mail_handler = SMTPHandler(
>         "smtp.example.com",
>         "navigator@example.com",
>         "captain.nemo@example.com",
>         "fyi")
>     mail_handler.setLevel(logging.CRITICAL)
> 
>     root = logging.getLogger()
>     root.addHandler(mail_handler)
> 
>     # will print amessage
>     root.warn("this is fishy") 
> 
>     # will print a message and send an email
>     root.critical("giant squid sighted")
> 
Thank you.

-- 
Chris Green

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