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# 19.7. `xml.dom.pulldom` — Support for building partial DOM trees

Source code: Lib/xml/dom/pulldom.py

`xml.dom.pulldom` allows building only selected portions of a Document Object Model representation of a document from SAX events.

class `xml.dom.pulldom.``PullDOM`(documentFactory=None)

  `xml.sax.handler.ContentHandler` implementation that ...

class `xml.dom.pulldom.``DOMEventStream`(stream, parser, bufsize)

  ...

class `xml.dom.pulldom.``SAX2DOM`(documentFactory=None)

  `xml.sax.handler.ContentHandler` implementation that ...

`xml.dom.pulldom.``parse`(stream_or_string, parser=None, bufsize=None)

  ...

`xml.dom.pulldom.``parseString`(string, parser=None)

  ...

`xml.dom.pulldom.``default_bufsize`

  Default value for the bufsize parameter to `parse()`.

  The value of this variable can be changed before calling `parse()` and the new value will take effect.

## 19.7.1. DOMEventStream Objects

`DOMEventStream.``getEvent`()

  ...

`DOMEventStream.``expandNode`(node)

  ...

`DOMEventStream.``reset`()

  ...

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