itb_util.py 文件源码

def contains_letter(text):
    '''Returns whether “text” contains a “letter” type character

    :param text: The text to check
    :type text: string
    :rtype: boolean

    Examples:

    >>> contains_letter('Hi!')
    True

    >>> contains_letter(':-)')
    False
    '''
    for char in text:
        category = unicodedata.category(char)
        if category in ('Ll', 'Lu', 'Lo',):
            return True
    return False