Merge pull request #1760 from scottpurdy/remove-unused-stdrandom

Removes StdRandom class that was defined in math.i but never used.

nupic/bindings/math.i

@@ -363,19 +363,3 @@ inline PyObject* shuffle(PyObject* obj)
 }
 
 } // End extend nupic::Random.
-
-%pythoncode %{
-import random
-class StdRandom(random.Random):
-  """An adapter for nupic::Random that allows use of inherited samplers
-  from the Python standard library 'random' module."""
-  def __init__(self, *args, **keywords):
-    self.rgen = Random(*args, **keywords)
-  def random(self): return self.rgen.getReal64()
-  def setstate(self, state): self.rgen.setState(state)
-  def getstate(self): return self.rgen.getState()
-  def jumpahead(self, n): self.rgen.jumpAhead(n)
-  def seed(self, seed=None):
-    if seed is None: self.rgen.setSeed(0)
-    else: self.rgen.setSeed(seed)
-%}

tests/unit/nupic/math/nupic_random_test.py

@@ -27,7 +27,7 @@
 
 import numpy
 
-from nupic.bindings.math import Random, StdRandom
+from nupic.bindings.math import Random
 
 
 
@@ -66,27 +66,6 @@ def testNupicRandomPickling(self):
                         "NuPIC random gave the same result twice?!?")
 
 
-  def testStdRandomStateFunctions(self):
-    """Test the NuPIC StdRandom to make sure getstate / setstate works."""
-    sr = StdRandom(43)
-
-    srState = sr.getstate()
-    r1 = sr.random()
-    r2 = sr.random()
-    sr.setstate(srState)
-
-    self.assertEqual(sr.random(), r1)
-    self.assertEqual(sr.random(), r2)
-
-    srState = sr.getstate()
-    r1 = sr.random()
-    r2 = sr.random()
-    sr.setstate(srState)
-
-    self.assertEqual(sr.random(), r1)
-    self.assertEqual(sr.random(), r2)
-
-
   def testSample(self):
     r = Random(42)
     population = numpy.array([1, 2, 3, 4], dtype="uint32")