Failed to import the site module
Traceback (most recent call last):
  File "/usr/lib/python3.4/site.py", line 586, in <module>
    main()
  File "/usr/lib/python3.4/site.py", line 572, in main
    known_paths = addusersitepackages(known_paths)
  File "/usr/lib/python3.4/site.py", line 287, in addusersitepackages
    user_site = getusersitepackages()
  File "/usr/lib/python3.4/site.py", line 263, in getusersitepackages
    user_base = getuserbase() # this will also set USER_BASE
  File "/usr/lib/python3.4/site.py", line 253, in getuserbase
    USER_BASE = get_config_var('userbase')
  File "/usr/lib/python3.4/sysconfig.py", line 597, in get_config_var
    return get_config_vars().get(name)
  File "/usr/lib/python3.4/sysconfig.py", line 540, in get_config_vars
    _init_posix(_CONFIG_VARS)
  File "/usr/lib/python3.4/sysconfig.py", line 412, in _init_posix
    from _sysconfigdata import build_time_vars
  File "/usr/lib/python3.4/_sysconfigdata.py", line 6, in <module>
    from _sysconfigdata_m import *
ImportError: No module named '_sysconfigdata_m'

#python
set(Python_ADDITIONAL_VERSIONS 3.4)
get_filename_component(CUSTOM_PYTHON_LIB "../external/python-3.4.2/build/local/lib/libpython3.so" ABSOLUTE)
get_filename_component(CUSTOM_PYTHON_INC "../external/python-3.4.2/build/local/include/python3.4m" ABSOLUTE)
set(PYTHON_INCLUDE_DIR ${CUSTOM_PYTHON_INC})
set(PYTHON_LIBRARY ${CUSTOM_PYTHON_LIB})
find_package(PythonLibs 3.4.2 REQUIRED)

#boost
set(BOOST_ROOT ../external/boost-1.57.0)
find_package(Boost 1.57.0 COMPONENTS python3 REQUIRED)