api_enc.py 文件源码

def smart_str(self, s, encoding='utf-8', strings_only=False, errors='strict'):
        if strings_only and isinstance(s, (types.NoneType, int)):
            return s
        if not isinstance(s, basestring):
            try:
                return str(s)
            except UnicodeEncodeError:
                if isinstance(s, Exception):
                    return ' '.join([self.smart_str(arg, encoding, strings_only, errors) for arg in s])
                return unicode(s).encode(encoding, errors)
        elif isinstance(s, unicode):
            return s.encode(encoding, errors)
        elif s and encoding != 'utf-8':
            return s.decode('utf-8', errors).encode(encoding, errors)
        else:
            return s

    # ???????????????????
    # ????????