which is just the logged message.
:type fmt: str
- :param datefmt: A format string in the given *style* for
- the date/time portion of the logged output.
+ :param datefmt: A format string for the date/time portion of the logged output.
If not specified, the default described in :meth:`formatTime` is used.
:type datefmt: str
how the format string will be merged with its data: using one of
:ref:`old-string-formatting` (``%``), :meth:`str.format` (``{``)
or :class:`string.Template` (``$``). This only applies to
- *fmt* and *datefmt* (e.g. ``'%(message)s'`` versus ``'{message}'``),
+ *fmt* (e.g. ``'%(message)s'`` versus ``'{message}'``),
not to the actual log messages passed to the logging methods.
However, there are :ref:`other ways <formatting-styles>`
to use ``{``- and ``$``-formatting for log messages.