Sandbox environment Step 1, please choose one of these servers http://54.169.215.11:8888 http://54.169.164.129:8888 http://54.169.152.149:8888 http://52.77.233.103:8888 Step 2, please open the URL, then "New" -> Folder Step 3, select the folder, then "Rename" Step 4, input a unique id, say your name, click the "rename" button Step 5, go into your folder, then "New" -> "Python 2" Step 6, in the new opened page, write your code in the notebook