/usr/include/python2.7/numpy is in python-numpy 1:1.8.1-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/include/python2.7/../../lib/python2.7/dist-packages/numpy/core/include/numpy
/usr/include/python2.7/../../lib/python2.7/dist-packages/numpy/core/include/numpy