环境：python3.8.10

python使用requests的post提交数据的时候，代码写法跟抓包的headers里面的'Content-Type'有关系。

（一）记录'Content-Type': 'application/x-www-form-urlencoded'的写法。

import requestsurl='https://xxx.com'headers={'Content-Type': 'application/x-www-form-urlencoded',
}my_data = {'value': '{"account":"username","pwd":"pwd","type":"sign","device_info":{"model":"android","screen":"720x1280"},"extra_info":{"app_version":5000},"body":{"uid":"8899","type":1,"signin_day":1,"keep_signin":1}}'}#简单点的就是
#my_data = {'key1':'value1'}
#或者
#my_data = {'key1':'value1','key2':'value2'}response = requests.post(url=url, headers=headers,data=my_data)
print(response.text)

（二）记录'Content-Type': 'application/json'的写法

import requestsurl='https://xxx.com'headers={'Content-Type': 'application/json',
}my_data = {'value': '{"account":"username","pwd":"pwd","type":"sign","device_info":{"model":"android","screen":"720x1280"},"extra_info":{"app_version":5000},"body":{"uid":"8899","type":1,"signin_day":1,"keep_signin":1}}'}#简单点的就是
#my_data = {'key1':'value1'}
#或者
#my_data = {'key1':'value1','key2':'value2'}response = requests.post(url=url, headers=headers,json=my_data)
print(response.text)

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以下是我编程时候的随手记：

（1）POST

#header_car中有一句 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',(表格形式)
data_car={"ajax": "1","a": "confproduct","configure": "true","i": "0","hostname": r_name,"rootpw": r_pwd,"ns1prefix": "ns1","ns2prefix": "ns2","billingcycle": "monthly",}
c_url="https://xxx.com"
#有代理 
r_car=s.post(c_url,headers=header_car,proxies=proxies,data=data_car)
#无代理
r_car=s.post(c_url,headers=header_car,data=data_car)

（2）POST（涉及将字典格式转化为json数据的知识）

#如果是请求头部是'Content-Type': 'application/json'payload = {'simpleSku': 'KS111A016-A110075000', 'anonymous': 0}#这是字典json_data=json.dumps(payload)#将字典转变为json数据
print json_data#{"simpleSku": "KS111A016-A110075000", "anonymous": 0}这是json格式r_car=requests.post(c_url,headers=header_car,data=json.dumps(payload))#如果请求头为'Content-Type': 'application/json',需要使用json格式的数据print r_car.status_code
print r_car.content还发现了一点，如果字典中有值为false，把false改为0，反而正常运行了。

或者

header_launch={'accept': 'application/json',#说明接收的参数是json格式'content-type': 'application/json; charset=UTF-8',
}data_car={"country": "CN","id": gdid,"productId": productId,"skuId": "",#空在这里代表了null"wishlistId": wishlistId}url1='https://xxx.com'
result=requests.put(url1,headers=header_launch,json=data_car)#注意：headers不能缺少，json=data_car，data_car为json格式
print(result)

（3）GET

        params=(('jsv','2.4.2'),('appKey','12574478'),('t',millis),('sign',sign),('api','mtop.taobao.shop.impression.intro.get'),('v','1.0'),('type','originaljson'),('secType','1'),('timeout','3000'),('AntiCreep','true'),('dataType','json'),('data',my_data),)result=requests.get(url_tel,headers=header_shop,params=params)

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更多的内容可以参考文章：

一文详解 requests 库中 json 参数和 data 参数的用法_requests data json格式-CSDN博客

python——json、字典的区别及相互转换方法_python json转字典-CSDN博客