import dis
import inspect
from functools import lru_cache


def nameof(_):
    frame = inspect.currentframe().f_back
    return _nameof(frame.f_code, frame.f_lasti)


@lru_cache
def _nameof(code, offset):
    instructions = list(dis.get_instructions(code))
    (current_instruction_index, current_instruction), = (
        (index, instruction)
        for index, instruction in enumerate(instructions)
        if instruction.offset == offset
    )
    assert current_instruction.opname == "CALL_FUNCTION"
    name_instruction = instructions[current_instruction_index - 1]
    assert name_instruction.opname.startswith("LOAD_")
    return name_instruction.argrepr


def test():
    print(nameof(dis))
    print(nameof(dis.get_instructions))
    x = 1
    print(nameof(x))


if __name__ == '__main__':
    test()