Matt Funk, 21.02.2011 18:30:
I want to create a set of xml input files to my code that look as follows:
<?xml version="1.0" encoding="UTF-8"?>
<!-- Settings for the algorithm to be performed
-->
<Algorithm>
<!-- The algorithm type.
-->
<!-- The supported options are:
-->
<!-- - Alg0
-->
<!-- - Alg1
-->
<Type>Alg1</Type>
<!-- the location/path of the input file for this algorithm
-->
<path>./Alg1.in</path>
</Algorithm>
<!-- Relevant information during the processing will be written to a
logfile -->
<Logfile>
<!-- the location/path of the logfile (i.e. where to put the
logfile) -->
<path>c:\tmp</path>
<!-- verbosity level (i.e. how much to print)
-->
<!-- The supported options are:
-->
<!-- - 0 (nothing printed)
-->
<!-- - 1 (print on error)
-->
<verbosity>1</verbosity>
</Logfile>
That's not XML. XML documents have exactly one root element, i.e. you need
an enclosing element around these two tags.
So there are comments, whitespace etc ... in it.
I would like to be able to put everything into some sort of structure
Including the comments or without them? Note that ElementTree will ignore
comments.
such that i can access it as:
structure['Algorithm']['Type'] == Alg1
Have a look at lxml.objectify. It allows you to write
alg_type = root.Algorithm.Type.text
and a couple of other niceties.
http://lxml.de/objectify.html
I was wondering if there is something out there that does this.
I found and tried a few things:
1) http://code.activestate.com/recipes/534109-xml-to-python-data-structure/
It simply doesn't work. I get the following error:
raise exception
xml.sax._exceptions.SAXParseException:<unknown>:1:2: not well-formed
(invalid token)
"not well formed" == "not XML".
But i removed everything from the file except:<?xml version="1.0"
encoding="UTF-8"?>
and i still got the error.
That's not XML, either.
Anyway, i looked at ElementTree, but that error out with:
xml.parsers.expat.ExpatError: junk after document element: line 19, column 0
In any case, ElementTree is preferable over a SAX based solution, both for
performance and maintainability reasons.
Stefan
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