core.py 文件源码

def _list_xml_members(cls):
    """Generator listing all members which are XML elements or attributes.

    The following members would be considered XML members:
    foo = 'abc' - indicates an XML attribute with the qname abc
    foo = SomeElement - indicates an XML child element
    foo = [AnElement] - indicates a repeating XML child element, each instance
        will be stored in a list in this member
    foo = ('att1', '{http://example.com/namespace}att2') - indicates an XML
        attribute which has different parsing rules in different versions of
        the protocol. Version 1 of the XML parsing rules will look for an
        attribute with the qname 'att1' but verion 2 of the parsing rules will
        look for a namespaced attribute with the local name of 'att2' and an
        XML namespace of 'http://example.com/namespace'.
    """
    members = []
    for pair in inspect.getmembers(cls):
      if not pair[0].startswith('_') and pair[0] != 'text':
        member_type = pair[1]
        if (isinstance(member_type, tuple) or isinstance(member_type, list)
            or isinstance(member_type, (str, unicode))
            or (inspect.isclass(member_type)
                and issubclass(member_type, XmlElement))):
          members.append(pair)
    return members