咸鱼sign签名 python纯算还原

目标接口：

• mtop.taobao.idlehome.home.webpc.feed
• https://h5api.m.goofish.com/h5/mtop.taobao.idlehome.home.webpc.feed/1.0/

sign签名不对会报：

{"api":"mtop.taobao.idlehome.home.webpc.feed","data":{},"ret":