diff --git a/contrib/async-test/test-leaf.py b/contrib/async-test/test-leaf.py
new file mode 100755
index 0000000..8b7c3e3
--- /dev/null
+++ b/contrib/async-test/test-leaf.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+import sys
+import time
+from thrift.transport import TTransport
+from thrift.transport import TSocket
+from thrift.protocol import TBinaryProtocol
+from thrift.server import THttpServer
+from aggr import Aggr
+
+class AggrHandler(Aggr.Iface):
+  def __init__(self):
+    self.values = []
+
+  def addValue(self, value):
+    self.values.append(value)
+
+  def getValues(self, ):
+    time.sleep(1)
+    return self.values
+
+processor = Aggr.Processor(AggrHandler())
+pfactory = TBinaryProtocol.TBinaryProtocolFactory()
+THttpServer.THttpServer(processor, ('', int(sys.argv[1])), pfactory).serve()