python - 斜纹：requests.exceptions.MissingSchema

Question

我正在为需要用户登录才能查看其内容的页面开发一个简单的网络爬虫。

from twill.commands import *
go("https://website.com/user")
fv("1","edit-name","NICKNAME")
fv("1","edit-pass","NICKNAME")
submit('0')

那是我当前的代码。运行它时，我收到以下错误

raise MissingSchema(error)
requests.exceptions.MissingSchema: Invalid URL '/user': No schema supplied. Perhaps you meant http:///user?

我究竟做错了什么？