feedparser.py 文件源码

def __init__(self, _factory=message.Message, **_3to2kwargs):
        if 'policy' in _3to2kwargs: policy = _3to2kwargs['policy']; del _3to2kwargs['policy']
        else: policy = compat32
        """_factory is called with no arguments to create a new message obj

        The policy keyword specifies a policy object that controls a number of
        aspects of the parser's operation.  The default policy maintains
        backward compatibility.

        """
        self._factory = _factory
        self.policy = policy
        try:
            _factory(policy=self.policy)
            self._factory_kwds = lambda: {'policy': self.policy}
        except TypeError:
            # Assume this is an old-style factory
            self._factory_kwds = lambda: {}
        self._input = BufferedSubFile()
        self._msgstack = []
        if PY3:
            self._parse = self._parsegen().__next__
        else:
            self._parse = self._parsegen().next
        self._cur = None
        self._last = None
        self._headersonly = False

    # Non-public interface for supporting Parser's headersonly flag