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logging and propagation

Vinay Sajip vinay_sajip at yahoo.co.uk
Thu Nov 22 00:44:36 EST 2007 
On Nov 21, 11:38 am, oj <ojee... at gmail.com> wrote:
> Hi,
>
> I want to setuploggingwith two loggers:
>
> The child logger is used when something different needs to be done
> with the log record, and the log record will propagate and be logged
> by the root logger as usual.
>
> However, there are certain times when I don't want a log record to
> propagate from the child to the parent.
>
> I don't really want to add a filter to the root logger, as it should
> be up to the child whether the record propagates or not.
>
> I've tried setting the child to a lower level then the parent, but if
> a record is dealt with by the child, the parent deals with it anyway
> regardless of its own log level.
>
> Also, filters only apply particular handlers and do not affect
> propagation.
>
> Can anyone suggest a simple way to achieve this?
>
> Currently, the only thing I can think of, is overriding the
> callHandlers method in a custom Logger class.

Do you already have a Logger subclass? Where and when is the decision
being made about whether to propagate or not?
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