获取 Errno 9：python 套接字中的错误文件描述符
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Getting Errno 9: Bad file descriptor in python socket
提问by Mike Savi
My code is this:
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)
It works fine on the first run, but gives me Errno 9 every time after. What am I doing wrong?
它在第一次运行时运行良好，但每次都给我 Errno 9。我究竟做错了什么？
BTW,
顺便提一句，
mcip = "mau5ville.com"
port = 25565
magic = "\xFE"
采纳答案by abarnert
You're calling connecton the same socket you closed. You can't do that.
您正在调用connect您关闭的同一个套接字。你不能那样做。
As for the docsfor closesay:
至于该文档的close说：
All future operations on the socket object will fail.
套接字对象上的所有未来操作都将失败。
Just move the s = socket.socket()(or whatever you have) into the loop. (Or, if you prefer, use create_connectioninstead 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.)
只需将s = socket.socket()（或任何您拥有的）移动到循环中即可。（或者，如果您愿意，可以使用create_connection而不是分两步进行，这样更难出错，也意味着您不必猜测 IPv4 与 IPv6 等。）
回答by mgrfn
i resolved this problem at the past,
我过去解决了这个问题，
you have to make this before connect again:
您必须在再次连接之前进行此操作：
s = socket(AF_INET, SOCK_STREAM)
than continue with:
比继续：
s.connect((mcip, port))
s.send(magic)
data = s.recv(1024)
s.close()
print dat
