how to get random from a string in python code example

Example 1: generate random string python

import string
import random

length=5
#python2
randomstr = ''.join(random.sample(string.ascii_letters+string.digits,length))


#python3
randomstr = ''.join(random.choices(string.ascii_letters+string.digits,k=length))

Example 2: how to make a module that generates a random letter in python

# -random letter generator-
import string
var1 = string.ascii_letters

import random
var2 = random.choice(string.ascii_letters)
print(var2)