diff --git a/Project Euler/Problem 10/sol1.py b/Project Euler/Problem 10/sol1.py
index ca9593afa..eace01a46 100644
--- a/Project Euler/Problem 10/sol1.py	
+++ b/Project Euler/Problem 10/sol1.py	
@@ -1,6 +1,12 @@
 from __future__ import print_function
 from math import sqrt
 
+try:
+	xrange          # Python 2
+except NameError:
+	xrange = range  # Python 3
+
+
 def is_prime(n):
 	for i in xrange(2, int(sqrt(n))+1):
 		if n%i == 0:
@@ -30,4 +36,4 @@ if __name__ == '__main__':
 			n = int(sys.argv[1])
 			print(sum_of_primes(n))
 		except ValueError:
-			print('Invalid entry - please enter a number.')
\ No newline at end of file
+			print('Invalid entry - please enter a number.')