python - 我从 Python 3.6.2 : TypeError: getsockaddrarg: AF_INET address must be tuple, not bytes 收到错误

Question

我在 StackOverflow 上进行了搜索，但提到的技巧都不起作用。这是我的代码。

    from socket import *
import time

address= ( '10.1.15.243', '5000') #Server data
client_socket =socket(AF_INET, SOCK_DGRAM) #Socket klaarzetten
client_socket.settimeout(1) #Response time

while(1):

    data = "Positie" #Data request = Positie

    client_socket.sendto( (b'10.1.15.243'), (b'5000') ) #Data aanvragen

    try:

        rec_data, addr = client_socket.recvfrom(2048) #Read response from arduino
        temp = float(rec_data) #Convert string rec_data naar float temp
        with open('resultaten.txt', 'w') as f: #Data in TXT opslaan
            print('Positie:', filename, file=f) #Data confirmen
    except:
        pass

Answer 1

documentation说:

A pair (host, port) is used for the AF_INET address family, where host is a string representing either a hostname in Internet domain notation like 'daring.cwi.nl' or an IPv4 address like '100.50.200.5', and port is an integer.

sendto 需要消息和地址，所以有 2 个参数。你正在传递这个:

client_socket.sendto( (b'10.1.15.243'), (b'5000') )

因此从sendto来看，消息是b'10.1.15.243'，地址是b'5000'。 b"5000" 是一个字节对象，它解释了错误消息。这里的括号没有任何作用(即使它们确实定义了元组，那仍然是不正确的)。而且，你还忘记传递你的有效负载......

由于 address 是一个正确的地址元组 (('10.1.15.243','5000'))，只需执行以下操作:

data = b"Positie"  # needs to be bytes object
client_socket.sendto(data, address)

(地址已在上面正确定义)