Python：用socket模块从物联网云接收发送到数据，不知道如何加上或去除结束符？

Question

在整树莓派的物联网智能家居，用Python的socket模块和服务器通信。用的是乐为物联网平台，其规定在通信时发送和接收都以&^!为结束符来判断是否为完整包。比如发送字符串str的{"method": "response","result": {"successful": true,"message": "successful","data":[{"id":"button1","value":"0"}]}}&^!

1.其中&^!前面的应该是一个字典其中嵌套着字典和列表，那么我想问如何给这个字典加上&^!的特殊字符？
2.又如我接收到了字符串型str的{"method":"send","gatewayNo":"02","userkey":"e789edfbfbc547c2b497281ac3b997bd","f":"getAllSensors"}&^!
那么我如何把&^!去除掉，并把数据变成可操作的字典型数据？

Answer 1

1 str = '{"method": "response","result": {"successful": true,"message": "successful","data":[{"id":"button1","value":"0"}]}}'
要在str后面加上'&^!"， 可以直接使用 str = str + '&^!'
其结果：
print str就为
{"method": "response","result": {"successful": true,"message": "successful","data":[{"id":"button1","value":"0{"method": "response","result": {"successful": true,"message": "successful","data":[{"id":"button1","value":"0"}]}}&^!

2 去掉str后面的'&^!'，可以直接使用str = str.strip('&^!')