Random string generation with upper case letters and digits

Here is a simple function that generates a random string of a given length using upper case letters and digits:

import random
import string

def generate_random_string(length):
    return ''.join(random.choices(string.ascii_uppercase + string.digits, k=length))

# Example
print(generate_random_string(8))

This will generate a random string of length 8, containing upper case letters and digits. You can adjust the length parameter to generate strings of different lengths.

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You can also use the random.sample function to achieve the same result:

import random
import string

def generate_random_string(length):
    return ''.join(random.sample(string.ascii_uppercase + string.digits, k=length))

# Example
print(generate_random_string(8))

Both of these approaches use the string module's ascii_uppercase and digits constants to generate the random strings. The ascii_uppercase constant contains all upper case letters, and the digits constant contains all digits.