Added examples regarding iterable unpacking

examples/unpacking.py

@@ -0,0 +1,33 @@
+
+def iterable_unpacking():
+    """
+    As of Python 3.0 you can use an iterable to unpack a sequence of
+    elements. In Python 2.x you could already write:
+
+        a, b = (1, 2)
+
+    to obtain a = 1 and b = 2 but you can now also use iterables.
+
+    You can learn more about this in PEP 3132.
+    """
+    a, *b, c = [1, 2, 3, 4, 5]
+    # a = 1
+    # b = [2, 3, 4]
+    # c = 5
+
+    x, *xs = range(10)
+    # x = 0
+    # xs = [1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+    x, y, z, *xs, k = range(10)
+    # x = 0
+    # y = 1
+    # z = 2
+    # xs = [3, 4, 5, 6, 7, 8]
+    # k = 9
+
+    *a, = range(10)
+    # a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+    for a, b, c, *n in [range(10)]:
+        print(a, b, c)  # prints 0 1 2