Use py.test instead of nosetests.

test/test_buffer.py

@@ -1,16 +1,13 @@
 #!/usr/bin/env python
 # coding: utf-8
 
-from nose import main
-from nose.tools import *
 from msgpack import packb, unpackb
 
+
 def test_unpack_buffer():
     from array import array
     buf = array('b')
     buf.fromstring(packb(('foo', 'bar')))
     obj = unpackb(buf, use_list=1)
-    assert_equal([b'foo', b'bar'], obj)
+    assert [b'foo', b'bar'] == obj
 
-if __name__ == '__main__':
-    main()