def div_list_len(original_list, div_len):
    """
    Yield successive len-sized chunks from original_list
    original_list ==> some of div_list, each div list len=div_len
    :param original_list:
    :param div_len:
    :return:
    """
    for i in range(0, len(original_list), div_len):
        yield original_list[i:i + div_len]
