Can I get some help with this? I am supposed to write code to check if a string inputted is a palindrome recursively

Thanks!

Write a recursive function is_pa1(string) to check if a string is palindrome. A palindrome string is a string that. reads the same form either direction. For example: >>> is_pal('aa') True >>> is_pal('aabb') False >>> is_pal('aba') True