codecs.py 文件源码

def __init__(self, name, base_encoding, mapping):
        self.name = name
        self.base_encoding = base_encoding
        self.mapping = mapping
        self.reverse = {v:k for k,v in mapping.items()}
        self.max_len = max(len(v) for v in mapping.values())
        self.info = codecs.CodecInfo(name=self.name, encode=self.encode, decode=self.decode)
        codecs.register_error(name, self.error)