python导出chrome书签到markdown文件的实例代码

from json import loadsimport argparsefrom platform import systemfrom re import matchfrom os import environfrom os.path import expanduser# 过滤namefilter_name_list = {'My work', '书签栏', 'websites'}html_escape_table = {  "&": "&",  '"': """,  "'": "'",  ">": ">",  "<": "<",}output_file_template = """<h3>书签目录</h3>{catelog}{bookmark_bar}{other}"""# 如需本地调试可注释掉这一段 STARTparser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter,                 description="python导出chrome书签到markdown文件.")parser.add_argument("input_file", type=argparse.FileType('r', encoding='utf-8'), nargs="?",          help="读取书签的位置,可以指定文件位置(相对路径，绝对路径都可以),非必填,默认为Chrome的默认书签位置")parser.add_argument("output_file", type=argparse.FileType('w', encoding='utf-8'),          help="读取书签的位置,可以指定文件位置(相对路径，绝对路径都可以),必填")args = parser.parse_args()if args.input_file:  input_file = args.input_fileelse:  if system() == "Darwin":    input_filename = expanduser("~/Library/Application Support/Google/Chrome/Default/Bookmarks")  elif system() == "Linux":    input_filename = expanduser("~/.config/google-chrome/Default/Bookmarks")  elif system() == "Windows":    input_filename = environ["LOCALAPPDATA"] + r"/Google/Chrome/User Data/Default/Bookmarks"  else:    print('Your system ("{}") is not recognized. Please specify the input file manually.'.format(system()))    exit(1)  try:    input_file = open(input_filename, 'r', encoding='utf-8')  except IOError as e:    if e.errno == 2:      print("The bookmarks file could not be found in its default location ({}). ".format(e.filename) +         "Please specify the input file manually.")      exit(1)output_file = args.output_file# 如需本地调试可注释掉这一段 END# 本地调试可以指定文件名测试 START# input_filename = 'C:/Users/Administrator/AppData/Local/Google/Chrome/User Data/Default/Bookmarks'# input_file = open(input_filename, 'r', encoding='utf-8')# output_file_name = 'test2.md'# output_file = open(output_file_name, 'w', encoding='utf-8')# 本地调试可以指定文件名测试 END# 目录catelog = list()def html_escape(text):  return ''.join(html_escape_table.get(c, c) for c in text)def html_for_node(node):  # 判断url和children即判断是否包含在文件夹中  if 'url' in node:    return html_for_url_node(node)  elif 'children' in node:    return html_for_parent_node(node)  else:    return ''def html_for_url_node(node):  if not match("javascript:", node['url']):    return '- [{}]({})/n'.format(node['name'], node['url'])  else:    return ''def html_for_parent_node(node):  return '{0}/n/n{1}/n'.format(filter_catelog_name(node),                 ''.join([filter_name(n) for n in node['children']]))# 过滤文件夹def filter_name(n):  if n['name'] in filter_name_list:    return ''  else:    return html_for_node(n)# 过滤目录名def filter_catelog_name(n):  if n['name'] in filter_name_list:    return ''  else:    catelog.append('- [{0}](#{0})/n'.format(n['name']))    return '<h4 id={0}>{0}</h4>'.format(n['name'])contents = loads(input_file.read())input_file.close()bookmark_bar = html_for_node(contents['roots']['bookmark_bar'])other = html_for_node(contents['roots']['other'])catelog_str = ''.join(a for a in catelog)output_file.write(output_file_template.format(catelog=catelog_str, bookmark_bar=bookmark_bar, other=other))