html output via hdf

Hello,

I have a project website using Trac that I am working on, which uses
Python and Clearsilver.  In my Python code I have a string that
contains the HTML output I want to use in the temple:

req.hdf['somehtml'] = loadsofhtml

but when I access the variable

<?cs var:somehtml ?>

it has had the HTML characters all escaped into entity codes.  Is
there someway to stop this happening?

Thanks, Dominic.