IF (OPENSOURCE)
    IF (MODULE_KIND == PROTO_LIBRARY)
        EXCLUDE_TAGS(PY_PROTO)
    ENDIF()

    IF (MODULE_KIND == PY23_LIBRARY)
        EXCLUDE_TAGS(PY2)
    ENDIF()

    IF (MODULE_KIND == PY23_TEST)
        EXCLUDE_TAGS(PY2)
    ENDIF()
ENDIF()