test_dotdict.py

import dis


class CSPROTO_CLASS(object):
    EMPTY = b""
    CLOSE = b"<F2B_CLOSE_COMMAND>"
    END = b"<F2B_END_COMMAND>"
    CLOSE_END = CLOSE + END


class dotdict(dict):
    def __getattr__(self, name):
        return self[name]


CSPROTO_DOTDICT = dotdict({
    "EMPTY": b"",
    "END": b"<F2B_END_COMMAND>",
    "CLOSE": b"<F2B_CLOSE_COMMAND>"
})


def getter_for_class():
    return CSPROTO_CLASS.CLOSE_END


def getter_for_dict():
    return CSPROTO_DOTDICT.CLOSE + CSPROTO_DOTDICT.END


dis.dis(getter_for_class)
print("-----------------------------")
dis.dis(getter_for_dict)

"""
 24           0 LOAD_GLOBAL              0 (CSPROTO_CLASS)
              3 LOAD_ATTR                1 (CLOSE_END)
              6 RETURN_VALUE
-----------------------------
 28           0 LOAD_GLOBAL              0 (CSPROTO_DOTDICT)
              3 LOAD_ATTR                1 (CLOSE)
              6 LOAD_GLOBAL              0 (CSPROTO_DOTDICT)
              9 LOAD_ATTR                2 (END)
             12 BINARY_ADD
             13 RETURN_VALUE
"""