I checked on code and you are right, the text/xml doc is missing.
You should be able to solve your issue by monkeypatching the
RenderGenshi.doctypes_for_content_type adding the knowledge about
text/xml.

The change is quite simple, anywhere inside your code add:

from tg.render import RenderGenshi
RenderGenshi.doctypes_for_content_type.update({'text/xml' : (None, )})

Then the @expose('template', content_type='text/xml') should work correctly.

On Wed, Feb 8, 2012 at 8:15 AM, alex bodnaru <[email protected]> wrote:
> On 02/07/2012 11:51 PM, Christoph Zwerschke wrote:
>> Am 07.02.2012 20:31, schrieb alex bodnaru:
>>> i unfortunately couldn't apply the patch. probably a newer tg is needed.
>>
>> You, don't need to patch. The patch has already been improved further and is
>> included in TG 2.1.4.
>>
>> -- Christoph
>>
> so that's what i have right now :).
>
> thanks, alex
>
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