def dirmove(root_src_dir, root_dst_dir):
    for src_dir, dirs, files in os.walk(root_src_dir):
        dst_dir = src_dir.replace(root_src_dir, root_dst_dir, 1)
        if not os.path.exists(dst_dir):
            os.makedirs(dst_dir)
        for file_ in files:
            src_file = os.path.join(src_dir, file_)
            dst_file = os.path.join(dst_dir, file_)
            if os.path.exists(dst_file):
                # in case of the src and dst are the same file
                if os.path.samefile(src_file, dst_file):
                    continue
                os.remove(dst_file)
            shutil.move(src_file, dst_dir)
            #shutil.move가 already exists 오류 띄워서 그냥 하나 가져옴
        

#정리하는 함수
def organizer():
    Dir_input = os.getcwd()
    Dir_input_origin = os.getcwd()
    Len=len(Dir_input.split(os.path.sep))
    # directory where the files will be iterated over
    root_dir = os.getcwd()
    # directory where the files will be moved to
    # based on request, this will be same as the root
    
    for folder in os.listdir(Dir_input):
        Dir_input = Dir_input_origin+"\\"+folder
        for dir, dirs, files in os.walk(Dir_input):
            # only considering cases where directory has more than one entry
            # not mentioned in the request, but also considering cases where the only entry is a file
            if not(len(files) == 0 and len(dirs) + len(files) < 2):
                for dirs_list in dirs:
                    dirmove(dir+"\\"+dirs_list,Dir_input+"\\"+dirs_list)
                for files_list in files:
                    shutil.move(dir+"\\"+files_list,Dir_input+"\\"+files_list)
                break
                #모든 파일폴더들 구조 그대로 최상위 폴더로 이동
        
    for folder in os.listdir(Dir_input_origin):
        Dir_input = Dir_input_origin+"\\"+folder
        if(os.path.isdir(Dir_input)):
            for dir, dirs, files in os.walk(Dir_input):
                if(len(files)==0):
                    shutil.rmtree(dir, ignore_errors=True)
    #파일 안 들어가있는 폴더 삭제

댓 확인을 늦게했네 ㅋㅋ 코드 참고해서 해결해버림 ㄳㄳ
역시 하던 사람 코드가 더 깔끔하네