diff --git a/sandbox/mmap_client.py b/sandbox/mmap_client.py
new file mode 100755
index 000000000..1948b2571
--- /dev/null
+++ b/sandbox/mmap_client.py
@@ -0,0 +1,12 @@
+#!/usr/bin/env python2.4
+
+import mmap, os, time
+mx = mmap.mmap(os.open('xxx',os.O_RDWR), 1)
+last = None
+while True:
+	mx.resize(mx.size())
+	data = mx[:]
+	if data != last:
+		print data
+		last = data
+	time.sleep(1)
\ No newline at end of file
diff --git a/sandbox/mmap_server.py b/sandbox/mmap_server.py
new file mode 100755
index 000000000..490dc61cc
--- /dev/null
+++ b/sandbox/mmap_server.py
@@ -0,0 +1,9 @@
+#!/usr/bin/env python2.4
+
+fileob = open('xxx','w')
+while True:
+	data = raw_input('Enter some text:')
+	fileob.seek(0)
+	fileob.write(data)
+	fileob.truncate()
+	fileob.flush()
\ No newline at end of file