Solve the programming task below in a Python markdown code block.
# Palindrome strings

A palindrome is a word, phrase, number, or other sequence of characters which reads the same backward or forward. This includes capital letters, punctuation, and word dividers.

Implement a function that checks if something is a palindrome.

## Examples
```
isPalindrome("anna")   ==> true
isPalindrome("walter") ==> false
isPalindrome(12321)    ==> true
isPalindrome(123456)   ==> false
```
Also feel free to reuse/extend the following starter code:
```python
def is_palindrome(string):
```