Initial bots code... probably a crack idea but let's see if I can

get something useful out of it.

examples/bots/LICENSE

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+This work is licensed under the Creative Commons Attribution 2.5 License. To view a copy of this license, visit http://creativecommons.org/licenses/by/2.5/ or send a letter to Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 94105, USA.
+
+Attributions:
+
+chaitanya.jpg	http://www.flickr.com/photos/meanestindian/166408558/
+penelope.jpg	http://www.flickr.com/photos/gagah/9257515/
+kiu.jpg			http://flickr.com/photos/31072589@N00/139234295/

examples/bots/bots.activity

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+[Activity]
+python_class = bots

examples/bots/bots.py

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+import os
+
+import pygtk
+pygtk.require('2.0')
+import gtk
+
+from sugar.bots import Bot
+
+basedir = os.path.dirname(__file__)
+
+bot = Bot("Chaitanya", os.path.join(basedir, "chaitanya.jpg"))
+bot.start()
+
+bot = Bot("Kiu", os.path.join(basedir, "kiu.jpg"))
+bot.start()
+
+bot = Bot("Penelope", os.path.join(basedir, "penelope.jpg"))
+bot.start()
+
+gtk.main()

sugar/bots.py

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+import os
+import random
+import base64
+
+from sugar import env
+from sugar.presence import Service
+from sugar.presence import Buddy
+from sugar.presence import PresenceService
+from sugar.p2p import Stream
+
+class Bot:
+	def __init__(self, nick, icon_path):
+		self._nick = nick
+		self._icon_path = icon_path
+	
+	def start(self):
+		fd = open(self._icon_path, "r")
+		self._icon = fd.read()
+		fd.close()
+
+		# Our presence service
+		port = random.randint(40000, 65000)
+		properties = {}
+		self._service = Service.Service(self._nick, Buddy.PRESENCE_SERVICE_TYPE,
+			domain="", address=None, port=port, properties=properties)
+
+		self._icon_stream = Stream.Stream.new_from_service(self._service)
+		self._icon_stream.register_reader_handler(self._handle_buddy_icon_request, "get_buddy_icon")
+
+		# Announce ourselves to the world
+		self._pservice = PresenceService.PresenceService.get_instance()
+		self._pservice.start()
+		self._pservice.register_service(self._service)
+
+	def _handle_buddy_icon_request(self):
+		"""XMLRPC method, return the owner's icon encoded with base64."""
+		if self._icon:
+			return base64.b64encode(self._icon)
+		return ""

sugar/shell/Owner.py

@@ -1,13 +1,12 @@
+import os
+import random
+import base64
+
 from sugar import env
 from sugar.presence import Service
 from sugar.presence import Buddy
 from sugar.presence import PresenceService
 from sugar.p2p import Stream
-import os
-import random
-import base64
-
-
 
 class ShellOwner(object):
 	"""Class representing the owner of this machine/instance.  This class