diff --git a/examples/generator.erl b/examples/generator.erl
index fe031d2b..40b59817 100644
--- a/examples/generator.erl
+++ b/examples/generator.erl
@@ -3,7 +3,7 @@
 
 generate(N) when N >= 0 ->
     Port = open_port({spawn, "python handler.py"},
-        [{packet, 1}, nouse_stdio, binary, {env, [{"PYTHONPATH", "../src"}]}]),
+        [{packet, 4}, nouse_stdio, binary, {env, [{"PYTHONPATH", "../src"}]}]),
     generate(Port, N),
     receive
         {Port, {data, Data}} ->
diff --git a/examples/handler.py b/examples/handler.py
index a1baabd7..4c84fb1f 100644
--- a/examples/handler.py
+++ b/examples/handler.py
@@ -17,4 +17,4 @@ def handle(self, port, message):
 
 if __name__ == "__main__":
     proto = EventHandler()
-    proto.run(Port())
+    proto.run(Port(packet=4))
diff --git a/examples/hello.erl b/examples/hello.erl
index 2d0e5b9f..d430decd 100644
--- a/examples/hello.erl
+++ b/examples/hello.erl
@@ -1,7 +1,7 @@
 -module(hello).
 -export([hello/1]).
 
-hello(Name) ->
+hello(Name) when is_list(Name) ->
     Port = open_port({spawn, "python hello.py"},
         [{packet, 1}, nouse_stdio, binary, {env, [{"PYTHONPATH", "../src"}]}]),
     port_command(Port, term_to_binary({hello, Name})),
diff --git a/examples/hello.py b/examples/hello.py
index fbb6733f..2e674805 100644
--- a/examples/hello.py
+++ b/examples/hello.py
@@ -1,10 +1,10 @@
-from erlport import Port, Protocol
+from erlport import Port, Protocol, String
 
 
 class HelloProtocol(Protocol):
 
     def handle_hello(self, name):
-        return "Hello, %s" % name
+        return "Hello, %s" % String(name)
 
 
 if __name__ == "__main__":