n'th Prime

import math
def is_prime(i):
  sq=int(math.sqrt(i)+1)
  for p in range(3,sq,2):
      if i%p==0:
         return 0
  return 1

i=3
n=1
while 1>0:
  if is_prime(i):
       n=n+1
  if n==10001:
       break
  i=i+2
print i