1 files changed, 35 insertions, 0 deletions
diff --git a/challenge-142/roger-bell-west/python/ch-2.py b/challenge-142/roger-bell-west/python/ch-2.py
new file mode 100755
index 0000000000..f377b7678a
--- /dev/null
+++ b/challenge-142/roger-bell-west/python/ch-2.py
@@ -0,0 +1,35 @@
+#! /usr/bin/python3
+
+import unittest
+
+from random import randint
+import multiprocessing as mp
+from time import sleep
+
+def sleeper(x,q):
+  sleep(float(x)/500.0)
+  q.put(x)
+
+def sleepsort(n):
+  q=mp.SimpleQueue()
+  pq=[]
+  for i in n:
+    p=mp.Process(target=sleeper,args=(i,q))
+    p.start()
+    pq.append(p)
+  for p in pq:
+    p.join()
+  r=[]
+  while not q.empty():
+    r.append(q.get())
+  return r
+
+class TestSleepsort(unittest.TestCase):
+
+        def test_ex1(self):
+          a=[]
+          for i in range(10):
+            a.append(randint(1,100))
+          self.assertEqual(sleepsort(a),sorted(a),'example 1')
+
+unittest.main()