test_doctests stderr

/usr/lib/python2.7/dist-packages/numpy/core/__init__.py:6: 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:7: DeprecationWarning: CObject type is not supported in 3.x. Please use capsule objects instead.
  from . import umath
0..25..50..75..100
0..25..50..75..100
Loading floating point  data with 8  bytes ...  (6x4x3)
0..33..66..100
Loading floating point  data with 8  bytes ...  (6x4x3)
0..33..66..100
.
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Ran 1 test in 0.278s
OK