is_palindrome now supports punctuation.

fixit/textutils.py

@@ -8,7 +8,13 @@ def is_palindrome(text: str) -> bool:
         is_palindrome("madam") returns True.
         is_palindrome("hello") returns False.
     """
-    return text == text[::-1]
+
+    cleaned = "".join(
+        ch.lower()
+        for ch in text
+        if ch.isalnum()
+    )
+    return cleaned == cleaned[::-1]
 
 
 def reverse_words(text: str) -> str:

tests/test_textutils.py

@@ -11,7 +11,6 @@ def test_palindrome_ignores_case():
     assert is_palindrome("Level")
 
 
-@pytest.mark.xfail(reason="Known bug: spaces and punctuation are not ignored")
 def test_palindrome_ignores_punctuation():
     assert is_palindrome("A man, a plan, a canal: Panama")