Python中的持久HTTPS连接 [英] Persistent HTTPS Connections in Python

问题描述

我想向实时流发出HTTPS请求，并保持连接处于打开状态，以便我可以继续从中读取内容并进行处理。

I want to make an HTTPS request to a real-time stream and keep the connection open so that I can keep reading content from it and processing it.

I想在python中编写脚本。我不确定如何在我的脚本中保持连接打开。我用curl测试了端点，使连接成功打开。但是我如何在Python中完成它。目前，我有以下代码：

I want to write the script in python. I am unsure how to keep the connection open in my script. I have tested the endpoint with curl which keeps the connection open successfully. But how do I do it in Python. Currently, I have the following code:

c = httplib.HTTPSConnection('userstream.twitter.com')
c.request("GET", "/2/user.json?" + req.to_postdata())
response = c.getresponse()

我从哪里开始？

谢谢！

推荐答案

看起来你的实时流是作为一个无休止的HTTP GET响应提供的，是吗？如果是这样，您可以使用python的内置 urllib2.urlopen（）。它会返回一个类似文件的对象，您可以从中读取所需内容，直到服务器挂起为止。

It looks like your real-time stream is delivered as one endless HTTP GET response, yes? If so, you could just use python's built-in urllib2.urlopen(). It returns a file-like object, from which you can read as much as you want until the server hangs up on you.

f=urllib2.urlopen('https://encrypted.google.com/')
while True:
    data = f.read(100)
    print(data)

请记住，虽然urllib2说https，但它不验证服务器证书，所以你可能想尝试添加-on包如 pycurl 或 urlgrabber 以获得更好的安全性。 （我不确定urlgrabber是否支持https。）

Keep in mind that although urllib2 speaks https, it doesn't validate server certificates, so you might want to try and add-on package like pycurl or urlgrabber for better security. (I'm not sure if urlgrabber supports https.)

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