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Rooted by: Palindrome
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  • Code 
    def is_palindrome(s: str) -> bool:
    s = ''.join(i for i in s.lower() if i.isalnum())
    return s == s[::-1]
     Test Cases 
    import codewars_test as test
# TODO Write tests
test.assert_equals(is_palindrome("Taco Cat"), True)
test.assert_equals(is_palindrome("Are we not pure? No, sir! Panama's moody Noriega brags. It is garbage! Irony dooms a man - a prisoner up to new era."), True)
test.assert_equals(is_palindrome("Sit on a potato pan Milo"), False)
test.assert_equals(is_palindrome("A man, a plan, a canal - Panama."), True)
test.assert_equals(is_palindrome("oh no bees!"), False)

import solution # or from solution import example

# test.assert_equals(actual, expected, [optional] message)
@test.describe("Example")
def test_group():
    @test.it("test case")
    def _():
        test.assert_equals(is_palindrome("A man, a plan, panama"), False)
        test.assert_equals(is_palindrome("Bob Racecar"), False)
        test.assert_equals(is_palindrome("Are we not drawn onward to new era?"), True)
    View Run Output
  • Code
    • import string
    • def is_palindrome(s: str) -> bool:
    • forward = s.lower().translate(str.maketrans('', '', string.punctuation + ' '))
    • return forward == forward[::-1]
    • s = ''.join(i for i in s.lower() if i.isalnum())
    • return s == s[::-1]