此处，花括号内的字符用单引号括起来，运行报错，如下图所示

import json

#json_info = "{'name':'xiaolin'}"
json_info = '{"name":"xiaolin"}'
print(type(json_info))
dict1 = json.loads(json_info)
print(type(dict1))

将括号内的单引号改为双引号，问题解决，结果见下图