Simple program to check whether a given number is prime or not

PrimeOrNot.py

#!/usr/bin/env python3

#Simple program to check whether a number is prime or not
def isPrime(n):
	if n < 2:
		return False
	elif n == 2:
		return True
	else:
		for i in range(2, n):
			p = n % i
			if p == 0:
				return False
				break
		return True
while True:
	try:
		r = int(input('input Number: '))
		break
	except ValueError:
		print('Please Enter Number Only!')
print(isPrime(r))