A case of writing a file downloader using python

At work, I often need to download files or other data from the server, so I wrote a file download case using the tcp protocol:

1 Server code:

import socket
import os

if __name__ == "__main__":
    serves_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    #socket绑定ip
serves_socket.bind(("", 9080))
    #socket监听
serves_socket.listen(128)
    #socket链接
while True:        
    
        client_socket, client_address = serves_socket.accept()
        #接shou数据
        recv_data = client_socket.recv(1024)
        recv_msg = recv_data.decode( "utf-8" )
         print (recv_msg) #Find
         if the file exists
 if os.path.exists(recv_msg): #If
             the file exists on the desktop
 with open (recv_msg , "rb" ) as f:
                 while True :                    
                    file_content = f.read(1024)
                    if file_content:
                        client_socket.send(file_content)
                    Else :
                         break
 #If it does not exist, close the client
 client_socket.close()
     serves_socket.close ()

#Life is too short, I use python

2 Client code:

import socket
if __name__ == "__main__":

    client_socket = socket.socket(socket.AF_INET , socket.SOCK_STREAM) #Connected
     server
     client_socket.connect(( input ( "Please enter the ip address" ) , int ( input ( "Please enter the port number" ))))
     # Send to Search file name
 file_name = input ( "Please enter the file name to search for" )    
    fil_data = file_name.encode("utf-8")
    client_socket.send(fil_data)

    str_list = []
    #Receive the returned data
 while True :    
        recv_file_data = client_socket.recv(1024)
        if recv_file_data:
            str_list.append(recv_file_data)
        else:
            break
#写入文件
if str_list:
        with open("../../" + file_name, "wb") as f:
            for file_content_b in str_list:        
                f.write(file_content_b)
    else :
         print ( "The file you want to download does not exist" )
    client_socket.close()




Client execution result:

Please enter the ip address 192.168.243.130
Please enter port number 9080
Please enter the name of the file you are looking for 1.txt

A case of writing a file downloader using python

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