selftest.py 文件源码

def error(xml):
    """
    Test error handling.

    >>> error("foo").position
    (1, 0)
    >>> error("<tag>&foo;</tag>").position
    (1, 5)
    >>> error("foobar<").position
    (1, 6)

    """
    try:
        ET.XML(xml)
    except ET.ParseError:
        return sys.exc_value

# doesn't work with lxml.etree -> different positions