ismynameprime.py

import string
from math import sqrt; from itertools import count, islice

def isPrime(n):
    return n > 1 and all(n%i for i in islice(count(2), int(sqrt(n)-1)))

orgname = input('Give me a name:')
name = orgname.lower()
name = name.replace(' ','')

#Check illegal chars
ill = False
for letter in name:
	if letter not in string.ascii_lowercase:
		print('Illegal character: {0}'.format(letter))
		break

if not ill:
	strSum = ""
	for letter in name:
		strSum += "{0:d}".format(string.ascii_lowercase.index(letter) + 1)
	
	print(strSum)
	isum = int(strSum, 10)
	print(isPrime(isum))