Generate a Unique String in Python/Django

Question

What I want is to generate a string(key) of size 5 for my users on my website. More like a BBM PIN.

The key will contain numbers and uppercase English letters:

Answer 1

A more secure and shorter way of doing is using Django's crypto module.

from django.utils.crypto import get_random_string
code = get_random_string(5)

get_random_string() function returns a securely generated random string, uses secrets module under the hood.

You can also pass allowed_chars:

from django.utils.crypto import get_random_string
import string

code = get_random_string(5, allowed_chars=string.ascii_uppercase + string.digits)