reorganize dir

Signed-off-by: Mia Steinkirch <mia.steinkirch@gmail.com>

ebook_src/USEFUL/basic_examples/example_threads.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python
+
+__author__ = "bt3"
+
+import threading
+
+def worker(num):
+    """thread worker function"""
+    print 'Worker: %s' % num
+    return
+
+threads = []
+for i in range(5):
+    t = threading.Thread(target=worker, args=(i,))
+    threads.append(t)
+    t.start()