test_xml_etree.py 文件源码

def writefile():
    """
    >>> elem = ET.Element("tag")
    >>> elem.text = "text"
    >>> serialize(elem)
    '<tag>text</tag>'
    >>> ET.SubElement(elem, "subtag").text = "subtext"
    >>> serialize(elem)
    '<tag>text<subtag>subtext</subtag></tag>'

    Test tag suppression
    >>> elem.tag = None
    >>> serialize(elem)
    'text<subtag>subtext</subtag>'
    >>> elem.insert(0, ET.Comment("comment"))
    >>> serialize(elem)     # assumes 1.3
    'text<!--comment--><subtag>subtext</subtag>'
    >>> elem[0] = ET.PI("key", "value")
    >>> serialize(elem)
    'text<?key value?><subtag>subtext</subtag>'
    """