python - 为什么无法在 Python 中获取 Response？

Question

我在 python.org 中阅读了示例 http.client

import http.client
conn = http.client.HTTPSConnection("www.python.org")
conn.request("GET", "/")
r1 = conn.getresponse()
print(r1.status, r1.reason)
data1 = r1.read()  # This will return entire content.
# The following example demonstrates reading data in chunks.
conn.request("GET", "/")
r1 = conn.getresponse()

没问题，但下面的代码不是:

 import http.client
 conn = http.client.HTTPSConnection("www.python.org")
 conn.request("GET", "/")
 r1 = conn.getresponse()
 # The different here
 conn.request("GET", "/")
 r1 = conn.getresponse()
Error: http.client.ResponseNotReady: Request-sent

我听不懂。

Answer 1

来自python官方文档:

HTTPConnection.getresponse() Should be called after a request is sent to get the response from the server. Returns an HTTPResponse instance.

Note: that you must have read the whole response before you can send a new request to the server.

Source

正如您从注释中注意到的那样，您必须在发送请求之前阅读整个响应，这一切都不同......

您可以查看下面的使用完整链接以获取有关 httplib 的更多信息:

• HTTP protocol client
• how python http request and response works
• Interact with the Web Using Python and the HTTP Library