fix channel.users dict not updated on nick change

bot.py

@@ -446,6 +446,8 @@ class Fulvia(irc.IRCClient):
 		line = "-!- {oldname} is now known as {newname}"
 
 		for channel_name, channel in self.channels.items():
+			if oldname not in channel.users.keys():
+				continue
 			self.log(channel_name, line)
 
 			user = channel.users.pop(oldname)

modules/uptime.py

@@ -7,6 +7,7 @@ import datetime
 from twisted.internet import defer
 
 from module import commands
+import tools.time
 
 
 def setup(bot):
@@ -69,3 +70,12 @@ def idleTimeWulf(result, bot):
 	t = datetime.datetime.fromtimestamp(int(signon))
 	delta = datetime.datetime.now() - t
 	bot.msg("Adalwulf" + "_"*delta.days)
+
+
+@commands('unix')
+def unixtolocal(bot, trigger):
+	"""Converts the given timestamp from unix time to local time."""
+	unix = int(trigger.group(2))
+	dt = datetime.datetime.utcfromtimestamp(unix)
+	dt = dt.replace(tzinfo=datetime.timezone.utc)
+	bot.msg(dt.astimezone(tz=None).strftime('%Y-%m-%d %H:%M:%S'))