LXML: can't register namespace

[Steven D'Aprano]

On Fri, 09 Mar 2018 10:22:23 +0100, Stefan Behnel wrote:

> Andrew Z schrieb am 07.03.2018 um 05:03:
>> Hello,
>>  with 3.6 and latest greatest lxml:
>> 
>> from lxml import etree
>> 
>> tree = etree.parse('Sample.xml')
>> etree.register_namespace('','http://www.example.com')
> 
> The default namespace prefix is spelled None (because there is no prefix
> for it) and not the empty string.

Is that documented somewhere?

Is there a good reason not to support "" as the empty prefix?



-- 
Steve