The request content was malformed: Unrecognized token 'contentType': was expecting ('true', 'false' or 'null')

The request content was malformed:
Unrecognized token 'contentType': was expecting ('true', 'false' or 'null')

req = requests.post(url_post, headers=headers, cookies=cookies, data=data, verify=False)
这是因为在调用时输入的参数格式不对！修改为：
req = requests.post(url_post, headers=headers, cookies=cookies, data=json.dumps(data), verify=False)

url_post = 'http://172.16.5.12:1065/api/itoa/splquery/common'
        data = {
            "content": "start=now-168h | metric=FILESYSTEM.FSCapacity ip=\"144.240.208.87_145.240.208.87\" instance=\"/ORONLAPS\" | stats max by 30m,ip,instance",
            "contentType": "text", "uriPath": "/rest/metric/_q", "httpMethod": "post"}
        # data = json.dumps(data)
        req = requests.post(url_post, headers=headers, cookies=cookies, data=data, verify=False)
        # res = req.text
        # print(res)
        print(req.status_code)