Fix for bug in IrcMsg.__eq__.

src/ircmsgs.py

@@ -179,7 +179,8 @@ class IrcMsg(object):
         return self._len
 
     def __eq__(self, other):
-        return hash(self) == hash(other) and \
+        return isinstance(other, self.__class__) and \
+               hash(self) == hash(other) and \
                self.command == other.command and \
                self.prefix == other.prefix and \
                self.args == other.args

test/test_ircmsgs.py

@@ -59,6 +59,7 @@ class IrcMsgTestCase(SupyTestCase):
     def testEq(self):
         for msg in msgs:
             self.assertEqual(msg, msg)
+        self.failIf(msgs[0] == []) # Comparison to unhashable type.
 
     def testNe(self):
         for msg in msgs: