def prepare_xml_read(data, objectify=False):
    """Prepare various input types for XML parsing.

    Args:
        data (iter): Data to read
        objectify (bool): Parse using lxml's objectify data binding

    Returns:
        etree.ElementTree: Tree suitable for parsing

    Raises:
        TypeError: Invalid value for data
    """
    mod = _objectify if objectify else etree
    if hasattr(data, 'readlines'):
        data = mod.parse(data).getroot()
    elif isinstance(data, list):
        data = mod.fromstring(''.join(data))
    elif isinstance(data, basestring):
        data = mod.parse(open(data)).getroot()
    else:
        raise TypeError('Unable to handle data of type %r' % type(data))
    return data