Python给html文件的a标签添加属性

[{"title":"（ 8 个子文件 28.2MB ） Python给html文件的a标签添加属性","children":[{"title":"Python给html文件的a标签添加属性","children":[{"title":"【教程】Python中第三方的用于解析HTML的库：BeautifulSoup 在路上.mht <span style='color:#111;'> 588.35KB </span>","children":null,"spread":false},{"title":"BeautifulSoup-3.0.6.py <span style='color:#111;'> 74.57KB </span>","children":null,"spread":false},{"title":"beautifulsoup4-4.3.2.7z <span style='color:#111;'> 139.67KB </span>","children":null,"spread":false},{"title":"ModifyHtml.7z <span style='color:#111;'> 4.18KB </span>","children":null,"spread":false},{"title":"Beautiful Soup documentation.mht <span style='color:#111;'> 214.22KB </span>","children":null,"spread":false},{"title":"PTVS 2.1 VS 2013.msi <span style='color:#111;'> 6.53MB </span>","children":null,"spread":false},{"title":"Test.html <span style='color:#111;'> 288B </span>","children":null,"spread":false},{"title":"python-3.4.2.msi <span style='color:#111;'> 23.39MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]