How to generate random byte string of length n in Python [duplicate]

Question

I want to generate a random byte string of length n in Python. For example, I want byte strings such as b"helloworld" generated. This answer gives the following code for generating random strings:

from random import choice
from string import ascii_uppercase

print(''.join(choice(ascii_uppercase) for i in range(12)))

However, this just generates strings and not byte strings.

How do I do this?

Answer 1

Just chain encode() method after your join() method:-

print(''.join(choice(ascii_uppercase) for i in range(12)).encode())

Note:- if you want to encode in some specific encoding then pass that encoding as parameter in encode() method

Answer 2

simply encode() it.

from random import choice
from string import ascii_uppercase

test = ''.join(choice(ascii_uppercase) for i in range(12))
print(test.encode("utf-8"))