Merge pull request #4 from yyuu/master

raise AssertionError only if the response is None

Author: repeatedly

.gitignore

@@ -1,3 +1,5 @@
-build/*
-dist/*
+/build/*
+/dist/*
+/*.egg-info
 *.pyc
+*.pyo

README.md

@@ -10,7 +10,7 @@ MessagePack RPC implementation based on Tornado.
 import msgpackrpc
 
 class SumServer:
-  def sum(x, y):
+  def sum(self, x, y):
     return x + y
 
 server = msgpackrpc.Server(SumServer())

msgpackrpc/future.py

@@ -44,15 +44,15 @@ def result(self):
         return self._result
 
     def set_result(self, result):
-        assert result
+        assert result is not None
         self.set(result=result)
 
     @property
     def error(self):
         return self._error
 
     def set_error(self, error):
-        assert error
+        assert error is not None
         self.set(error=error)
 
     def attach_callback(self, callback):