test_xml_etree.py 文件源码

def xmltoolkit63():
    """

    Check reference leak.
    >>> xmltoolkit63()
    >>> count = sys.getrefcount(None)  #doctest: +SKIP
    >>> for i in range(1000):
    ...     xmltoolkit63()
    >>> sys.getrefcount(None) - count  #doctest: +SKIP
    0

    """
    tree = ET.TreeBuilder()
    tree.start("tag", {})
    tree.data("text")
    tree.end("tag")

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