How to check for palindrome using Python logic

A pythonic way to determine if a given value is a palindrome:

str(n) == str(n)[::-1]

Explanation:

We're checking if the string representation of n equals the inverted string representation of n
The [::-1] slice takes care of inverting the string
After that, we compare for equality using ==

An alternative to the rather unintuitive [::-1] syntax is this:

>>> test = "abcba"
>>> test == ''.join(reversed(test))
True

The reversed function returns a reversed sequence of the characters in test.

''.join() joins those characters together again with nothing in between.

Related