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How to Compare Strings with casefold in Python

Compares two strings ignoring case differences using the casefold() method for proper Unicode normalization.

def compare_strings(str1: str, str2: str) -> bool:
    return str1.casefold() == str2.casefold()

if __name__ == "__main__":
    tests = [
        ("HELLO", "hello"),
        ("Straße", "STRASSE"),
        ("Python", "Python"),
        ("Mixed Case", "mixed case"),
    ]
    for s1, s2 in tests:
        print(f"{s1!r}…

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