python generate random string with lenght
import random
import string
def randStr(chars = string.ascii_uppercase + string.digits, N=10):
return ''.join(random.choice(chars) for _ in range(N))
# default length(=10) random string
print(randStr())
# random string of length 7
print(randStr(N=7))
# random string with characters picked from ascii_lowercase
print(randStr(chars=string.ascii_lowercase))
# random string with characters picked from 'abcdef123456'
print(randStr(chars='abcdef123456'))