Handler that does nothing.
There are no implemented interfaces.
There are no attributes in this class.
acquire()
Acquire the I/O thread lock.
addFilter(filter)
Add the specified filter to this handler.
close()
Tidy up any resources used by the handler.
This version does removes the handler from an internal list of handlers which is closed when shutdown() is called. Subclasses should ensure that this gets called from overridden close() methods.
createLock()
Acquire a thread lock for serializing access to the underlying I/O.
emit(record)
filter(record)
Determine if a record is loggable by consulting all the filters.
The default is to allow the record to be logged; any filter can veto this and the record is then dropped. Returns a zero value if a record is to be dropped, else non-zero.
flush()
Ensure all logging output has been flushed.
This version does nothing and is intended to be implemented by subclasses.
format(record)
Format the specified record.
If a formatter is set, use it. Otherwise, use the default formatter for the module.
handle(record)
handleError(record)
Handle errors which occur during an emit() call.
This method should be called from handlers when an exception is encountered during an emit() call. If raiseExceptions is false, exceptions get silently ignored. This is what is mostly wanted for a logging system - most users will not care about errors in the logging system, they are more interested in application errors. You could, however, replace this with a custom handler if you wish. The record which was being processed is passed in to this method.
release()
Release the I/O thread lock.
removeFilter(filter)
Remove the specified filter from this handler.
setFormatter(fmt)
Set the formatter for this handler.
setLevel(level)
Set the logging level of this handler.
There are no known subclasses.