from lxml import etree
root = etree.Element('root1')
element = etree.SubElement(root, 'element1')
root.write( 'xmltree.xml' )
Error:
AttributeError: 'lxml.etree._Element' object has no attribute 'write'
how can I fix this?
The lxml XML toolkit is a Pythonic binding for the C libraries libxml2 and libxslt. It is unique in that it combines the speed and XML feature completeness of these libraries with the simplicity of a native Python API, mostly compatible but superior to the well-known ElementTree API.
Elements
(like root
) do not have a write
method, but ElementTrees do:
from lxml import etree
root = etree.Element('root1')
element = etree.SubElement(root, 'element1')
tree = root.getroottree()
print(type(tree))
# <type 'lxml.etree._ElementTree'>
tree.write('xmltree.xml')
The documentation on tree.write
is a little hard to find on the web. Here is the method's doc string:
In [7]: tree.write?
Type: builtin_function_or_method
Base Class: <type 'builtin_function_or_method'>
String Form: <built-in method write of lxml.etree._ElementTree object at 0x95c48cc>
Namespace: Interactive
Docstring:
write(self, file, encoding=None, method="xml",
pretty_print=False, xml_declaration=None, with_tail=True,
standalone=None, compression=0,
exclusive=False, with_comments=True)
Write the tree to a filename, file or file-like object.
Defaults to ASCII encoding and writing a declaration as needed.
The keyword argument 'method' selects the output method:
'xml', 'html', 'text' or 'c14n'. Default is 'xml'.
The ``exclusive`` and ``with_comments`` arguments are only
used with C14N output, where they request exclusive and
uncommented C14N serialisation respectively.
Passing a boolean value to the ``standalone`` option will
output an XML declaration with the corresponding
``standalone`` flag.
The ``compression`` option enables GZip compression level 1-9.
If you are wanting to save your new xml to a file then etree.tostring
is the method to use.
E.g.
>>> from lxml import etree
>>> root = etree.Element('root1')
>>> element = etree.SubElement(root, 'element1')
>>> print etree.tostring(root,pretty_print=True) ## Print document
<root1>
<element1/>
</root1>
>>> with open('xmltree.xml','w') as f: ## Write document to file
... f.write(etree.tostring(root,pretty_print=True))
...
>>>
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