Added adapter example.

examples/routingwrapper_pow.py

@@ -0,0 +1,43 @@
+# coding=utf-8
+"""
+Simple example using the RoutingWrapper to route API requests to different nodes.
+See: https://github.com/iotaledger/documentation/blob/iota.lib.py/1.2.x/source/includes/_adapters.md#routingwrapper
+"""
+from iota import *
+from iota.adapter.wrappers import RoutingWrapper
+
+api =\
+  Iota(
+    # Send PoW requests to local node.
+    # All other requests go to light wallet node.
+    RoutingWrapper('http://service.iotasupport.com:14265')
+      .add_route('attachToTangle', 'http://localhost:14265'),
+
+    # Seed used for cryptographic functions.
+    seed = b'SEED9GOES9HERE'
+  )
+
+# Example of sending a transfer using the adapter.
+bundle = api.send_transfer(
+  depth = 100,
+    transfers = [
+      ProposedTransaction(
+        # Recipient of the transfer.
+        address =
+          Address(
+            #b'TESTVALUE9DONTUSEINPRODUCTION99999FBFFTG'
+            #b'QFWEHEL9KCAFXBJBXGE9HID9XCOHFIDABHDG9AHDR'
+          ),
+
+        # Amount of IOTA to transfer.
+        # This value may be zero.
+        value = 1,
+
+        # Optional tag to attach to the transfer.
+        tag = Tag(b'ADAPT'),
+
+        # Optional message to include with the transfer.
+        message = TryteString.from_string('Hello!'),
+      ),
+    ],
+)