From 08fe2f191b909407c33fe7a4a227641371d7602f Mon Sep 17 00:00:00 2001
From: Matthew Perry <perrygeo@gmail.com>
Date: Sat, 3 Aug 2019 14:19:43 -0600
Subject: [PATCH 1/2] update salesman.py example to use auto schedule

---
 examples/salesman.py | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/examples/salesman.py b/examples/salesman.py
index 128a843..63dda84 100644
--- a/examples/salesman.py
+++ b/examples/salesman.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 from __future__ import print_function
 import math
 import random
@@ -28,6 +29,8 @@ def move(self):
         a = random.randint(0, len(self.state) - 1)
         b = random.randint(0, len(self.state) - 1)
         self.state[a], self.state[b] = self.state[b], self.state[a]
+        # no efficiency gain, just proof of concept
+        return self.energy()
 
     def energy(self):
         """Calculates the length of the route."""
@@ -37,7 +40,6 @@ def energy(self):
         return e
 
 
-
 if __name__ == '__main__':
 
     # latitude and longitude for the twenty largest U.S. cities
@@ -79,7 +81,7 @@ def energy(self):
                 distance_matrix[ka][kb] = distance(va, vb)
 
     tsp = TravellingSalesmanProblem(init_state, distance_matrix)
-    tsp.steps = 100000
+    tsp.set_schedule(tsp.auto(minutes=0.2))
     # since our state is just a list, slice is the fastest way to copy
     tsp.copy_strategy = "slice"
     state, e = tsp.anneal()
@@ -89,5 +91,4 @@ def energy(self):
 
     print()
     print("%i mile route:" % e)
-    for city in state:
-        print("\t", city)
+    print(" ➞  ".join(state))

From be72c9caec9de73ae81e49ee626fd308a14093be Mon Sep 17 00:00:00 2001
From: Matthew Perry <perrygeo@gmail.com>
Date: Sat, 3 Aug 2019 14:20:57 -0600
Subject: [PATCH 2/2] update

---
 CHANGES.md            | 3 +++
 simanneal/__init__.py | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/CHANGES.md b/CHANGES.md
index c0eca39..b2eaa83 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,6 @@
+### 0.5.0
+- Allow move function to return energy delta for efficiency gains in some cases (#28)
+
 ### 0.4.2
 - Fix bug in load_state (#23)
 
diff --git a/simanneal/__init__.py b/simanneal/__init__.py
index c5797ef..e685cfb 100644
--- a/simanneal/__init__.py
+++ b/simanneal/__init__.py
@@ -2,4 +2,4 @@
 from .anneal import Annealer
 
 __all__ = ['Annealer']
-__version__ = "0.4.2"
+__version__ = "0.5.0"