Determine whether the given Unicode character is a Unicode letter

def is_letter(uni_char):
    """Determine whether the given Unicode character is a Unicode letter"""
    category = Category.get(uni_char)
    return (category == Category.UPPERCASE_LETTER or
            category == Category.LOWERCASE_LETTER or
            category == Category.TITLECASE_LETTER or
            category == Category.MODIFIER_LETTER or
            category == Category.OTHER_LETTER)