extend example to show how to use remote iterator/generator properties feature

Author: irmen

docs/source/clientcode.rst

@@ -356,6 +356,8 @@ because the remote generator has been discarded in the meantime.
 Lingering can be disabled completely by setting the value to 0, then all remote generators from a proxy will
 immediately be discarded in the server if the proxy gets disconnected or closed.
 
+Remote properties can also be iterators or generators.
+
 There are several examples that use the remote iterator feature. Have a look at the
 `streaming <https://github.com/irmen/Pyro5/tree/master/examples/streaming>`_ ,
 `stockquotes <https://github.com/irmen/Pyro5/tree/master/examples/stockquotes>`_ or the

examples/streaming/client.py

@@ -17,3 +17,7 @@
     print("\nslow generator:")
     for number in p.slow_generator():
         print(number)
+    print("\nproperty iterator:")
+    print(list(p.prop_iter))
+    print("\nproperty generator:")
+    print(list(p.prop_generator))

examples/streaming/server.py

@@ -35,6 +35,14 @@ def fibonacci(self):
             yield a
             a, b = b, a + b
 
+    @property
+    def prop_iter(self):
+        return iter([1,2,3,4,5,6,7,8,9,10])
+
+    @property
+    def prop_generator(self):
+        return (x for x in range(10))
+
 
 serve({
         Streamer: "example.streamer"