Python JSON POST 请求

Question

不同的问题：1 个脚本。我必须从将在客户端运行并在远程 URL 上执行 POST 的 Python 脚本进行 JSON 化。我正在关注这里的文档http://docs.python.org/2/library/httplib.html - 但是，我不确定我是否做得对。当我在我的 Mac 上运行它时，我也没有得到任何响应状态。现在，我对以下几点有疑问 -

(1) The dummy 'device_key' (of the client) 
(2) The IP, Port listed at HTTPConnection --- I don't want to hard-code the IP, Port - should I be using "ServerHost:Port"
(3) The cpuStats is a nametuple (of 'user'= somevalue, 'idle' = somevalue, etc.) that is converted to a dict by _asdict(). I want to just send the cpuStats (namedtuple) to the URLpage.
(4) The cpu_times_percent(percpu=True) is what the docs say <http://code.google.com/p/psutil/wiki/Documentation#CPU> but when I run the script on my Mac - it shows just 1 namedtuple of cpu percentages though my mac has 4 cpus. 

我有一种强烈的感觉，我的错误超出了这个列表。

提前致谢。

import psutil 
import socket
import time
import sample
import json
import httplib
import urllib



serverHost = sample.host
port = sample.port

thisClient = socket.gethostname()
cpuStats = psutil.cpu_times_percent(percpu=True)
print cpuStats


currentTime = int(time.time())
s = socket.socket()
s.connect((serverHost,port))



cpuStatsjson = json.dumps(cpuStats._asdict())
params = urllib.urlencode({'cpuStats': cpuStats, 'device_key': 12345})
headers = {"Content-type": "application/json", "Accept": "text/plain"}
conn = httplib.HTTPConnection("http://XXX.XXX.XXX.XXX:YYYY")
conn.request("POST", "", cpuStatsjson, headers)
response = conn.getresponse()
print response.status, response.reason

s.close()

Answer 1

是的，httplib 可能可以做到这一点，但我强烈建议像 requests 之类的东西

让这个问题在请求中起作用

import requests

def post_some_dict(dict):
    headers = {'Content-type': 'application/json', 'Accept': 'text/plain'}
    r = requests.post(url, data=json.dumps(dict), headers=headers)

至于您的代码，我猜不需要套接字连接，以下代码确实为我发布：

data = {"somekey": 12}
headers = {"Content-type": "application/json", "Accept": "text/plain"}
conn = httplib.HTTPConnection('xx.xx.xx.xx')
conn.request("POST", "/", json.dumps(data), headers)