      "collapsed": false
     },
     "outputs": [],
     "source": [
      "print('NULL towers')\n",
      "hanoi(num_disks, None, None, None)\n",
      "first = Stack()\n",
      "second = Stack()\n",
      "third = Stack()\n",
      "print('0 disks')\n",
      "hanoi(num_disks, first, third, second)\n",
      "print('1 disk')\n",
      "first.push(5)\n",
      "hanoi(num_disks, first, third, second)\n",
      "print(third.pop())\n",
      "print('2 or more disks')\n",
      "num_disks = 3\n",
      "for i in xrange(num_disks, -1, -1):\n",
      "    first.push(i)\n",
      "hanoi(num_disks, first, third, second)\n",
      "for i in xrange(0, num_disks):\n",
      "    print(third.pop())"
     ]
    }
   ],
   "metadata": {
    "kernelspec": {
 
</s> remove    "outputs": [],
 </s> add    "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Test: NULL towers\n",
      "Test: 0 disks\n",
      "Test: 1 disk\n",
      "Test: 2 or more disks\n",
      "Success: test_hanoi\n"
     ]
    }
   ], </s> remove    "execution_count": null,
 </s> add    "execution_count": 3, </s> remove    "execution_count": null,
 </s> add    "execution_count": 2, </s> remove    "execution_count": null,
 </s> add    "execution_count": 1,
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
      "collapsed": false
     },
     "outputs": [],
     "source": [
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
    "from nose.tools import assert_equal\n",
    "\n",
    "class Test(object):\n",
    "    def test_hanoi(self):\n",
    "        num_disks = 3\n",
    "        src = Stack()\n",
    "        buff = Stack()\n",
    "        dest = Stack()\n",
    "\n",
    "        print('Test: NULL towers')\n",
    "        hanoi(num_disks, None, None, None)\n",
    "\n",
    "        print('Test: 0 disks')\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), None)\n",
    "\n",
    "        print('Test: 1 disk')\n",
    "        src.push(5)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        assert_equal(dest.pop(), 5)\n",
    "\n",
    "        print('Test: 2 or more disks')\n",
    "        for i in xrange(num_disks, -1, -1):\n",
    "            src.push(i)\n",
    "        hanoi(num_disks, src, dest, buff)\n",
    "        for i in xrange(0, num_disks):\n",
    "            assert_equal(dest.pop(), i)\n",
    "\n",
    "        print('Success: test_hanoi')\n",
    "\n",
    "if __name__ == '__main__':\n",
    "    test = Test()\n",
    "    test.test_hanoi()"
     ]
    }
   ],
   "metadata": {
    "kernelspec": {
keep keep keep keep replace replace replace replace replace replace replace replace replace replace replace replace replace replace replace replace replace replace keep keep keep keep keep
 Reworked notebook: Added more detail to constraints and test cases.  Reworked algorithm discussion and unit test. 
stacks-queues/hanoi.ipynb