/usr/include/ is in python-cxx-dev 6.2.5-1ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/CXX/
/usr/include/CXX/WrapPython.h
/usr/include/CXX/Version.hxx
/usr/include/CXX/Objects.hxx
/usr/include/CXX/Python2/
/usr/include/CXX/Python2/Objects.hxx
/usr/include/CXX/Python2/PythonType.hxx
/usr/include/CXX/Python2/ExtensionOldType.hxx
/usr/include/CXX/Python2/Extensions.hxx
/usr/include/CXX/Python2/ExtensionModule.hxx
/usr/include/CXX/Python2/CxxDebug.hxx
/usr/include/CXX/Python2/IndirectPythonInterface.hxx
/usr/include/CXX/Python2/ExtensionType.hxx
/usr/include/CXX/Python2/Config.hxx
/usr/include/CXX/Python2/Exception.hxx
/usr/include/CXX/Python2/ExtensionTypeBase.hxx
/usr/include/CXX/Extensions.hxx
/usr/include/CXX/IndirectPythonInterface.hxx
/usr/include/CXX/Config.hxx
/usr/include/CXX/Exception.hxx
/usr/include/python2.7/
/usr/include/python2.7/CXX/
/usr/include/python2.7/CXX/WrapPython.h
/usr/include/python2.7/CXX/Version.hxx
/usr/include/python2.7/CXX/Objects.hxx
/usr/include/python2.7/CXX/Python2/
/usr/include/python2.7/CXX/Python2/Objects.hxx
/usr/include/python2.7/CXX/Python2/PythonType.hxx
/usr/include/python2.7/CXX/Python2/ExtensionOldType.hxx
/usr/include/python2.7/CXX/Python2/Extensions.hxx
/usr/include/python2.7/CXX/Python2/ExtensionModule.hxx
/usr/include/python2.7/CXX/Python2/CxxDebug.hxx
/usr/include/python2.7/CXX/Python2/IndirectPythonInterface.hxx
/usr/include/python2.7/CXX/Python2/ExtensionType.hxx
/usr/include/python2.7/CXX/Python2/Config.hxx
/usr/include/python2.7/CXX/Python2/Exception.hxx
/usr/include/python2.7/CXX/Python2/ExtensionTypeBase.hxx
/usr/include/python2.7/CXX/Extensions.hxx
/usr/include/python2.7/CXX/IndirectPythonInterface.hxx
/usr/include/python2.7/CXX/Config.hxx
/usr/include/python2.7/CXX/Exception.hxx
/usr/include/python2.7_d/
/usr/include/python2.7_d/CXX