label.py 文件源码

def __init__(self, preserve, translate, other):
        """
        Arguments::
           preserve: a string of characters to preserve
           translate: a dict or key/value list of characters to translate
           other: the character to return for all characters not in
                  preserve or translate
        """
        self.table = dict(
            (k if isinstance(k, int) else ord(k), v)
            for k,v in six.iteritems(dict(translate)) )
        for c in preserve:
            _c = ord(c)
            if _c in self.table and self.table[_c] != c:
                raise RuntimeError("Duplicate character '%s' appears in both "
                                   "translate table and preserve list" % (c,))
            self.table[_c] = c
        self.other = other