text: import requests
  from bs4 import BeautifulSoup
  
  # 극작가 목록 api 추출
  anc_list = requests.get("http://www.kopis.or.kr/openApi/restful/prfper?service=&stdate=20210101&eddate=20211231&cpage=1&rows=7019".encode('utf-8'))
  anc_soup = BeautifulSoup(anc_list.content, "html.parser")
  anc_id = list(str(anc_soup.select("db > mt20id, prfnm, author, creator")).split("<mt20id>"))
  anc_num = anc_soup.findAll("mt20id")
  
  # 극작가 목록 이중 list
  author_creator_list = [[] for i in range(len(anc_num))]
  
  for i in range(1, len(anc_num)+1):
      author_creator_list[i-1].append(anc_id[i])
  
  for i in author_creator_list:
      print(i)
  
  
  '''
  ########### 현재 수정중
  
  목표 API 리스트 index 별 내용(필드명)
  공연ID(mt20id), 공연명(prfnm), 원작자(author), 창작자(creator)
  '''