I've been searching high and low for a way to simply convert a small
XML configuration file to Python data structures. I came across gnosis
XML tools, but need a built-in option for doing something similar.
My knowledge of DOM and anything beyond simple XML structures is
rudimentary at best. Is there a simple way to use SAX handlers to pull
attributes and elements into Python lists/dictionaries?
19  3296 
Amara does indeed make it effortless to transform an XML document into
a Python structure. Unfortunately this suggestion requires the 3rd
party software, Amara, _and_ a 4Suite installation according to the
website.
The reason I can't expect users to have 3rd party tools is because this
tool will be used in a secure lab environment without Internet access.
Asking the admins to place these software packages on the network for
users to install is like asking GW to say something semi-intelligent.
ga********@gmai l.com wrote: Amara does indeed make it effortless to transform an XML document into
a Python structure. Unfortunately this suggestion requires the 3rd
party software, Amara, _and_ a 4Suite installation according to the
website.
The reason I can't expect users to have 3rd party tools is because this
tool will be used in a secure lab environment without Internet access.
Asking the admins to place these software packages on the network for
users to install is like asking GW to say something semi-intelligent.
Why not use distutils to install any additional packages you need? That's
what it's there for. Presumably you're going to need to package this thing
for distribution anyway.
--
Website: www DOT jarmania FULLSTOP com
A good question... Here's a followup question:
Does third-party software compile as well as the built-in modules when
using distutils and the py2exe extension module?
Am Wed, 16 Mar 2005 14:19:49 -0800 schrieb ga********@gmai l.com: I've been searching high and low for a way to simply convert a small
XML configuration file to Python data structures. I came across gnosis
XML tools, but need a built-in option for doing something similar.
My knowledge of DOM and anything beyond simple XML structures is
rudimentary at best. Is there a simple way to use SAX handlers to pull
attributes and elements into Python lists/dictionaries?
Hi,
Just write a script which uses xml.sax. It is not difficult.
You get an event for every start-tag and for every end-tag.
The class which handles the events can build the structure
if your XML file.
The online version of the python cookbook has some
python and SAX examples,
Thomas
--
Thomas Güttler, http://www.thomas-guettler.de/
"ga********@gma il.com" wrote: I've been searching high and low for a way to simply convert a small
XML configuration file to Python data structures. I came across gnosis
XML tools, but need a built-in option for doing something similar.
My knowledge of DOM and anything beyond simple XML structures is
rudimentary at best. Is there a simple way to use SAX handlers to pull
attributes and elements into Python lists/dictionaries?
tools like ElementTree and xmltramp are very easy to use. ElementTree builds
a tree of Element objects which behave like lists (of subelements) and contain
dictionaries (of attributes). xmltramp builds a tree where both subelements and
attributes are mapped to object attributes. http://www.aaronsw.com/2002/xmltramp/ http://www.effbot.org/zone/element-index.htm
if you want to ship any of them with your application, you only need a single
module (xmltramp.py and ElementTree.py, respectively).
API summaries: http://reagle.org/joseph/blog/techno...menttree-model http://reagle.org/joseph/blog/techno...xmltramp-model
(xmltramp might be a bit easier to use for simple cases, elementtree is a bit more
flexible and a bit more efficient, especially if you're using the C implementation)
</F>
Lutz Horn wrote: ga********@gmai l.com schrieb:
I've been searching high and low for a way to simply convert a small
XML configuration file to Python data structures.
Take a look at Amara (http://uche.ogbuji.net/tech/4Suite/amara/).
Lutz
Amara rules xml to python conversions. I've used it successfully for an
xml interface to legacy databases.
Huy
Since I've exhausted every option except for Amara, I've decided to
give it a try. However, this will only work if I can compile Amara and
4suite along with my application. I doubt 4suite will be able to be
compiled, but I'll try it anyway.
If I weren't set on using XML (I know, not every application requires
it and it's abused), I would probably go with a simpler format like an
INI file or YAML. The requirement that leads me to use XML for a
simple config file is that the rest of this project already utilizes
XML and another developer must integrate his NetBeans GUI with my app
and config file. Not to mention that this must be across Linux and
Windows platforms. To make this easier on everyone else, I'm using a
simple XML schema that I know everyone can write to. As far as I know,
YAML isn't easily written to from a Java class and an INI file isn't
very popular on the Linux side.
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