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Presence
========
Presence describes the concept of a person's availability state, such as
*online* or *away*, possibly with an optional message.
Callbacks for presence changes
------------------------------
Plugins may override :meth:`~errbot.botplugin.BotPlugin.callback_presence`
in order to receive notifications of presence changes. You will receive
a :class:`~errbot.backends.base.Presence` object for every presence change
received by Errbot.
Here's an example which simply logs each presence change to the log
when it includes a status message:
.. code-block:: python
from errbot import BotPlugin
class PluginExample(BotPlugin):
def callback_presence(self, presence):
if presence.get_message() is not None:
self.log.info(presence)
Change the presence or status of the bot
----------------------------------------
You can also, depending on the backend you use, change the current status of
the bot. This allows you to make a moody bot that leaves the room when it is
in a bad mood ;)
.. code-block:: python
from errbot import BotPlugin, botcmd, ONLINE, AWAY
class PluginExample(BotPlugin):
@botcmd
def grumpy(self, mess, args):
self.change_presence(AWAY, 'I am tired of you all!')
@botcmd
def happy(self, mess, args):
self.change_presence(ONLINE, 'I am back and so happy to see you!')
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