.. index:: pair: Errors; logging
This module defines functions and classes which implement a flexible error
-logging system for applications.
+logging system for applications and libraries.
The key benefit of having the logging API provided by a standard library module
is that all Python modules can participate in logging, so your application log
As you can see, merging of variable data into the event description message
uses the old, %-style of string formatting. This is for backwards
compatibility: the logging package pre-dates newer formatting options such as
-:meth:`str.format` and :class:`string.Template`. These formatting options *are*
-supported, but exploring them is outside the scope of this tutorial.
+:meth:`str.format` and :class:`string.Template`. These newer formatting
+options *are* supported, but exploring them is outside the scope of this
+tutorial.
Changing the format of displayed messages