对于以下Python代码，描述不正确的是哪一项？Import requestsNbi-name = "campus@north.com"Nbi_pwd = "5aAZ41h440"Host = "192.9.214.72"Port = "18002"Post_TOKEN_URL = "/contraller/v2/tokens"Post_token_url = "https:// +host + ':' +part +POST_TOKEN_URL"Header_post = 'Content-Type': 'application json',Accept':'application/json']R = resquest.post(post_token_url,headers=hesders_post,json="userName":nb_name,"password : nbi_pwd],verify=Palse")