diff -r 588aff83bb87 -r c17b82b1f573 irc.py
--- a/irc.py	Mon Aug 03 19:45:57 2015 +0300
+++ b/irc.py	Tue Aug 04 22:39:22 2015 +0300
@@ -26,6 +26,7 @@
 	THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 '''
 
+from __future__ import print_function
 import asyncore
 import socket
 import sys
@@ -60,7 +61,8 @@
 # Prints a line to log channel(s)
 #
 def broadcast (line):
-	print line
+	print (line)
+
 	for client in all_clients:
 		if not client.flags & CLIF_CONNECTED:
 			continue
@@ -104,7 +106,8 @@
 		all_clients.append (self)
 		asyncore.dispatcher.__init__ (self)
 		self.create_socket (socket.AF_INET, socket.SOCK_STREAM)
-		print "[%s] Connecting to [%s] %s:%d..." % (get_timestamp(), self.name, self.host, self.port)
+		print ("[%s] Connecting to [%s] %s:%d..." % \
+			(get_timestamp(), self.name, self.host, self.port))
 		self.connect ((self.host, self.port))
 		ClientsByName[self.name] = self
 
@@ -116,17 +119,21 @@
 		self.write ("NICK %s" % self.mynick)
 
 	def handle_connect (self):
-		print "[%s] Connected to [%s] %s:%d" % (get_timestamp(), self.name, self.host, self.port)
+		print ("[%s] Connected to [%s] %s:%d" % (get_timestamp(), self.name, self.host, self.port))
 		self.register_to_irc()
 
 	def write (self, utfdata):
 		try:
-			self.send_buffer.append ("%s" % utfdata.decode("utf-8","ignore").encode("ascii","ignore"))
+			if sys.version_info < (3, 0):
+				self.send_buffer.append (utfdata.decode("utf-8","ignore").encode("ascii","ignore"))
+			else:
+				self.send_buffer.append (utfdata)
 		except UnicodeEncodeError:
 			pass
 
 	def handle_close (self):
-		print "[%s] Connection to [%s] %s:%d terminated." % (get_timestamp(), self.name, self.host, self.port)
+		print ("[%s] Connection to [%s] %s:%d terminated." %
+			(get_timestamp(), self.name, self.host, self.port))
 		self.close()
 
 	def handle_write (self):
@@ -141,24 +148,31 @@
 	def send_all_now (self):
 		for line in self.send_buffer:
 			if self.verbose:
-				print "[%s] [%s] <- %s" % (get_timestamp(), self.name, line)
-			self.send ("%s\n" % line)
+				print ("[%s] [%s] <- %s" % (get_timestamp(), self.name, line))
+
+			if sys.version_info >= (3, 0):
+				self.send (bytes (line + '\n', 'UTF-8'))
+			else:
+				self.send (line + '\n')
 			time.sleep (0.25)
 		self.send_buffer = []
 
 	def handle_read (self):
 		lines = self.recv (4096).splitlines()
-		for utfline in lines:
+		for line in lines:
 			try:
-				line = utfline.decode("utf-8","ignore").encode("ascii","ignore")
+				line = line.decode ('utf-8', 'ignore')
+
+				if sys.version_info < (3, 0):
+					line = line.encode ('ascii', 'ignore')
 			except UnicodeDecodeError:
 				continue
 
 			if self.verbose:
-				print "[%s] [%s] -> %s" % (get_timestamp(), self.name, line)
+				print ("[%s] [%s] -> %s" % (get_timestamp(), self.name, line))
 
-			if line.startswith ("PING :"):
-				self.write ("PONG :%s" % line[6:])
+			if line[:len('PING :')] == ('PING :'):
+				self.write ("PONG :%s" % line[len('PING :'):])
 				self.send_all_now() # pings must be responded to immediately!
 			else:
 				words = line.split(" ")
@@ -172,7 +186,9 @@
 							self.write ('MODE %s %s' % (self.mynick, self.cfg.get_value ('umode', '')))
 
 						for channel in self.channels:
-							self.write ("JOIN %s %s" % (channel.get_value ('name'), channel.get_value ('password', default='')))
+							self.write ("JOIN %s %s" %
+								(channel.get_value ('name'),
+								channel.get_value ('password', default='')))
 					elif words[1] == "PRIVMSG":
 						self.handle_privmsg (line)
 					elif words[1] == 'QUIT':
@@ -271,7 +287,7 @@
 			return
 
 	def handle_error(self):
-		raise RestartError (traceback.format_exception(sys.exc_type, sys.exc_value, sys.exc_traceback))
+		raise RestartError (traceback.format_exception (*sys.exc_info()))
 
 	def restart(self):
 		raise RestartError('')