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在python 3.5上打开UDP套接字_Python_Sockets_Python 3.x_Udp - Fatal编程技术网

在python 3.5上打开UDP套接字

在python 3.5上打开UDP套接字,python,sockets,python-3.x,udp,Python,Sockets,Python 3.x,Udp,我正在尝试在Python3.5上打开udp套接字。我在Python2.7上编写了一个python代码,它可以正常工作。当我转到python 3.5时,它给了我一个错误,这是python代码: from socket import * import time UDP_IP="192.168.1.26" UDP_PORT = 6009 UDP_PORT2 = 5016 address= ('192.168.1.207' , 5454) client_socket = socket(AF_INET

我正在尝试在Python3.5上打开udp套接字。我在Python2.7上编写了一个python代码,它可以正常工作。当我转到python 3.5时,它给了我一个错误,这是python代码:

from socket import *
import time

UDP_IP="192.168.1.26"
UDP_PORT = 6009
UDP_PORT2 = 5016

address= ('192.168.1.207' , 5454)
client_socket = socket(AF_INET , SOCK_DGRAM)
client_socket.settimeout(1)
sock = socket (AF_INET , SOCK_DGRAM)
sock.bind((UDP_IP , UDP_PORT))
sock2 = socket(AF_INET , SOCK_DGRAM)
sock2.bind((UDP_IP , UDP_PORT2))

while (1) :

    data = "Temperature"

    client_socket.sendto(data , address)

    rec_data,addr = sock.recvfrom(2048)

    temperature = float(rec_data)

    print (temperature)

    outputON_1 = 'ON_1'

    outputOFF_1 = 'OFF_1'

    seuil_T = 25.00

    if (temperature < seuil_T) :
        client_socket.sendto(outputOFF_1, address)
    else :
        client_socket.sendto(outputON_1 , address)

##    sock.close()

    data = "humidity"

    client_socket.sendto(data , address)

    rec_data , addr =sock2.recvfrom(2048)

    humidity = float (rec_data)

    print (humidity)

    outputON_2 = "ON_2"

    outputOFF_2 = "OFF_2"

    seuil_H = 300

    if humidity < seuil_H :
        client_socket.sendto(outputOFF_2 , address)
    else:
        client_socket.sendto(outputON_2 , address)
 This is the error that I got : 

您需要使用

client_socket.sendto(bytes(data, 'utf-8') , address)

在Python 3中,
socket
上的
sendto
send
sendall
方法现在使用
字节
对象,而不是
str
s。为了修复代码中的此问题,您需要调用字符串
.encode()
,例如:

client_socket.sendto(outputOFF_2.encode() , address)
在定义字节字符串文字时使用它们:

outputOFF_2 = b"OFF_2"
默认情况下,
s.encode()
将使用
utf8
对字符串(
s
)进行编码。可选编码可以作为参数提供,例如:
s.encode('ascii')

还要记住,
recv
recvfrom
现在也将返回
字节
,因此您可能需要
.decode()
它们(同样的规则适用于
.decode
.encode

outputOFF_2 = b"OFF_2"