Valid palindrome

Author: EstherKim97

valid-palindrome/EstherKim97.py

@@ -0,0 +1,11 @@
+class Solution(object):
+    def isPalindrome(self, s):
+        import re
+        # remove all non-alphanumeric characters
+        s = re.sub(r'\W+', '', s.lower())
+
+        # check if the string is equal forward and backward
+        for i in range(len(s)//2):
+            if s[i] != s[-(i+1)]:
+                return False
+        return True