Fix errant doctest.

docs/source/routing_table_tools_doctest.rst

@@ -51,35 +51,35 @@ The outline below shows how routing tables might be generated from the results
 of Rig's :py:mod:`place and route <rig.place_and_route>` tools, minimised and
 then loaded onto a SpiNNaker machine.
 
-::
-
-    >>> # Interrogate the SpiNNaker machine to determine what resources are
-    >>> # available (including the number of multicast routing table entries on
-    >>> # each chip).
-    >>> from rig.machine_control import MachineController
-    >>> machine_controller = MachineController("hostname")
-    >>> system_info = machine_controller.get_system_info()
+.. code-block:: python
+
+    # Interrogate the SpiNNaker machine to determine what resources are
+    # available (including the number of multicast routing table entries on
+    # each chip).
+    from rig.machine_control import MachineController
+    machine_controller = MachineController("hostname")
+    system_info = machine_controller.get_system_info()
     
-    >>> # Place-and-route your application as normal and select suitable
-    >>> # routing keys for each net.
-    >>> from rig.place_and_route import route
-    >>> routes = route(...)
-    >>> net_keys = {Net: (key, mask), ...}
+    # Place-and-route your application as normal and select suitable
+    # routing keys for each net.
+    from rig.place_and_route import route
+    routes = route(...)
+    net_keys = {Net: (key, mask), ...}
     
-    >>> # Produce routing tables from the generated routes
-    >>> from rig.routing_table import routing_tree_to_tables
-    >>> routing_tables = routing_tree_to_tables(routes, net_keys)
+    # Produce routing tables from the generated routes
+    from rig.routing_table import routing_tree_to_tables
+    routing_tables = routing_tree_to_tables(routes, net_keys)
     
-    >>> # Minimise the routes (if required), trying a sensible selection of table
-    >>> # minimisation algorithms.
-    >>> from rig.routing_table import (
-    ...     build_routing_table_target_lengths,
-    ...     minimise_tables)
-    >>> target_lengths = build_routing_table_target_lengths(system_info)
-    >>> routing_tables = minimise_tables(routing_tables, target_lengths)
-
-    >>> # Load the minimised routing tables onto SpiNNaker
-    >>> machine_controller.load_routing_tables(routing_tables)
+    # Minimise the routes (if required), trying a sensible selection of table
+    # minimisation algorithms.
+    from rig.routing_table import (
+        build_routing_table_target_lengths,
+        minimise_tables)
+    target_lengths = build_routing_table_target_lengths(system_info)
+    routing_tables = minimise_tables(routing_tables, target_lengths)
+
+    # Load the minimised routing tables onto SpiNNaker
+    machine_controller.load_routing_tables(routing_tables)
 
 
 :py:class:`.RoutingTableEntry` and :py:class:`.Routes`: Routing table data structures