message: Set default python version to 3.5
  Resolve:
diff: @@ -17,8 +17,7 @@ macro(ADD_FLAG_IF_SUPPORTED flag name)
  endif()
  endmacro()
  -unset(PYTHON_VERSION)
  -
  +set(PYTHON_VERSION "3.5" CACHE STRING "Python Version to use")
  find_package(PythonLibsNew EXACT ${PYTHON_VERSION} MODULE REQUIRED)
  message(STATUS "Python version: ${PYTHON_VERSION}")
  