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Date: Wed, 18 Sep 2013 22:35:10 +0300
From: Burak Arslan <burak.arslan@arskom.com.tr>
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To: Roy Smith <roy@panix.com>
Subject: Re: lxml question -- creating an etree.Element attribute with ':' in the name
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Xref: csiph.com comp.lang.python:54396

On 09/18/13 21:59, Roy Smith wrote:
> I can create an Element with a 'foo' attribute by doing:
>
> etree.Element('my_node_name', foo="spam")
>
> But, how do I handle something like:
>
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance", since "xmlns:xsi" isn't a valid python identifier?
>
>

xmlns: is a prefix with a special meaning: it defines an xml namespaces
prefix. you should read about how they work.

The following:

Element('{http://www.w3.org/2001/XMLSchema-instance}my_node_name')

will generate a proper xmlns declaration for you. It may not be the same
every time, but it will do the job just as well.

btw, if you need to generate xml schemas, have a look at spyne:
http://spyne.io

Specifically:
https://github.com/arskom/spyne/blob/master/examples/xml/schema.py

best,
burak