test_filters stderr

/usr/lib/python2.7/dist-packages/numpy/core/__init__.py:14: DeprecationWarning: CObject type is not supported in 3.x. Please use capsule objects instead.
  from . import multiarray
/usr/lib/python2.7/dist-packages/numpy/core/__init__.py:21: DeprecationWarning: CObject type is not supported in 3.x. Please use capsule objects instead.
  from . import umath
/usr/lib/python2.7/dist-packages/numpy/random/__init__.py:99: DeprecationWarning: CObject type is not supported in 3.x. Please use capsule objects instead.
  from .mtrand import *
........
----------------------------------------------------------------------
Ran 8 tests in 0.001s
OK