byron wrote:
> I am using the lxml.etree library to validate an xml instance file
> with a specified schema that contains the data types of each element.
> This is some of the internals of a function that extracts the
> elements:
>
> schema_doc = etree.parse(schema_fn)
> schema = etree.XMLSchema(schema_doc)
>
> context = etree.iterparse(xml_fn, events=('start', 'end'),
> schema=schema)
>
> # get root
> event, root = context.next()
>
> for event, elem in context:
> if event == 'end' and elem.tag == self.tag:
> yield elem
> root.clear()
Note that you cannot modify the root element during iterparse() in
lxml.etree. It seems to work for you here, but it's not safe. Here's a
better way to do this.
http://www.ibm.com/developerworks/xml/library/x-hiperfparse/#N100FF
Stefan
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