获取 Errno 9:python 套接字中的错误文件描述符 [英] Getting Errno 9: Bad file descriptor in python socket

问题描述

我的代码是这样的:

while 1:
    # Determine whether the server is up or down
    try:
        s.connect((mcip, port))
        s.send(magic)
        data = s.recv(1024)
        s.close()
        print data
    except Exception, e:
        print e
    sleep(60)

它在第一次运行时运行良好，但每次都给我 Errno 9.我做错了什么?

It works fine on the first run, but gives me Errno 9 every time after. What am I doing wrong?

顺便说一句，

mcip = "mau5ville.com"
port = 25565
magic = "xFE"

推荐答案

您正在关闭的同一个套接字上调用 connect.你不能那样做.

You're calling connect on the same socket you closed. You can't do that.

至于 文档 关闭 说:

以后对套接字对象的所有操作都将失败.

All future operations on the socket object will fail.

只需将 s = socket.socket()(或任何您拥有的)移动到循环中.(或者，如果您愿意，可以使用 create_connection 而不是分两步做，这使得这更难出错，也意味着您不必猜测 IPv4 与 IPv6 等)

Just move the s = socket.socket() (or whatever you have) into the loop. (Or, if you prefer, use create_connection instead of doing it in two steps, which makes this harder to get wrong, as well as meaning you don't have to guess at IPv4 vs. IPv6, etc.)

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