request.py 文件源码

def __init__(self, raw, errors='replace'):
        """Takes a string of type application/x-www-form-urlencoded.
        """
        # urllib needs bytestrings in py2 and unicode strings in py3
        raw_str = raw.encode('ascii') if PY2 else raw

        self.decoded = _decode(unquote_plus(raw_str), errors=errors)
        self.raw = raw

        common_kw = dict(keep_blank_values=True, strict_parsing=False)
        if PY2:
            # in python 2 parse_qs does its own unquote_plus'ing ...
            as_dict = parse_qs(raw_str, **common_kw)
            # ... but doesn't decode to unicode.
            for k, vals in list(as_dict.items()):
                as_dict[_decode(k, errors=errors)] = [
                    _decode(v, errors=errors) for v in vals
                ]
        else:
            # in python 3 parse_qs does the decoding
            as_dict = parse_qs(raw_str, errors=errors, **common_kw)

        Mapping.__init__(self, as_dict)