diff --git a/Python/palindrome-number.py b/Python/palindrome-number.py
index ab1a797c6..f7745350e 100644
--- a/Python/palindrome-number.py
+++ b/Python/palindrome-number.py
@@ -24,11 +24,11 @@ def isPalindrome(self, x):
         while copy:
             reverse *= 10
             reverse += copy % 10
-            copy /= 10
+            copy //= 10
         
         return x == reverse
 
 if __name__ == "__main__":
     print Solution().isPalindrome(12321)
     print Solution().isPalindrome(12320)
-    print Solution().isPalindrome(-12321)
\ No newline at end of file
+    print Solution().isPalindrome(-12321)