如何获取我的代码以通过python服务器写入文本文件

Question

Client Code:

import socket                

s = socket.socket()          
host = '127.0.0.1'           
port = 8081                  

s.connect((host, port))
s.send("Hello server!".encode('utf-8'))

with open('received_file.txt', 'w+') as f:
    print('file opened')
    while True:
        print('receiving data...')
        data = s.recv(1024)
        print('data=%s' % data)
        if not data:
            break
        else:
            f = open('received_file.txt')
            f.write(data)

    f.close()
print('Successfully get the file')
s.close()
print('connection closed')

I get the following error:

TypeError: write() argument must be str, not bytes

Any answers would be greatly appreciated.

Answer 1

two ways to do that: either open your file in binary (note the 'b' in the file mode) and write bytes :

with open('received_file.txt', 'wb') as f:
    f.write(data)

or decode the data to a str before writing:

with open('received_file.txt', 'w') as f:
    f.write(data.decode('utf-8'))

or use any other encoding if you are not using utf-8 .

a side-note: in your code you have two open files called f (the 2nd one in the else part). that may not be a good idea...