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Dan Bader
78 lines
1.8 KiB
ReStructuredText
78 lines
1.8 KiB
ReStructuredText
XML parsing
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===========
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.. image:: /_static/photos/33888714601_a1f7d020a2_k_d.jpg
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untangle
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--------
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`untangle <https://github.com/stchris/untangle>`_ is a simple library which
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takes an XML document and returns a Python object which mirrors the nodes and
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attributes in its structure.
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For example, an XML file like this:
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.. code-block:: xml
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<?xml version="1.0"?>
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<root>
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<child name="child1">
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</root>
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can be loaded like this:
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.. code-block:: python
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import untangle
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obj = untangle.parse('path/to/file.xml')
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and then you can get the child elements name like this:
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.. code-block:: python
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obj.root.child['name']
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untangle also supports loading XML from a string or an URL.
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xmltodict
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---------
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`xmltodict <http://github.com/martinblech/xmltodict>`_ is another simple
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library that aims at making XML feel like working with JSON.
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An XML file like this:
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.. code-block:: xml
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<mydocument has="an attribute">
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<and>
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<many>elements</many>
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<many>more elements</many>
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</and>
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<plus a="complex">
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element as well
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</plus>
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</mydocument>
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can be loaded into a Python dict like this:
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.. code-block:: python
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import xmltodict
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with open('path/to/file.xml') as fd:
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doc = xmltodict.parse(fd.read())
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and then you can access elements, attributes and values like this:
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.. code-block:: python
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doc['mydocument']['@has'] # == u'an attribute'
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doc['mydocument']['and']['many'] # == [u'elements', u'more elements']
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doc['mydocument']['plus']['@a'] # == u'complex'
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doc['mydocument']['plus']['#text'] # == u'element as well'
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xmltodict also lets you roundtrip back to XML with the unparse function,
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has a streaming mode suitable for handling files that don't fit in memory
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and supports namespaces.
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