How to send a hexcode string in SOCKET python?

Question

I tried to send a hexcode string using the socket module in python. I wrote the following:

import socket
HOST = '192.168.140.2' 
PORT = 55000 
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
s.connect((HOST, PORT))   
  while True: 
      DATA = '\x00\xff\x00\xff\x00\xff\x00\xff\x00\xff\x00\xff\x00\xff\x00\xff\x00\xff\x00\xff   \x00\xff\x00\xff\x00\xff\x00'
      s.sendall(DATA) 
      data = s.recv(4096)
      s.close()

But it shows this error:

Traceback (most recent call last):
File "E:\Python\echo-client.py", line 9, in <module>
    s.sendall(DATA)
TypeError: a bytes-like object is required, not 'str'

When I send a single hexcode, using s.sendall(b'\xff'), it works.

How can I send a hex string to a server?

Probably your answer is here: https://stackoverflow.com/questions/7585435/best-way-to-convert-string-to-bytes-in-python-3 — Jeremy Friesner, Feb 19 '21 at 05:16

score 0 · Accepted Answer · answered Feb 19 '21 at 05:19

0

You forgot the b before the string in the DATA variable. It is required to make it a bytes object instead of a str object, which is accepted by socket.socket.sendall().

answered Feb 19 '21 at 05:19

Seth

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Thanks. it works. but I am struggling to stop from data sending... – Rabiul Islam Feb 23 '21 at 06:21
@RabiulIslam just break out of the while loop when ur done sending data – Seth Feb 23 '21 at 15:37

How to send a hexcode string in SOCKET python?

1 Answers1