[web2py] The use of dashes in helpers arguments.

[Bruno Rocha]

I need to create this:

<div data-role="controlgroup" data-type="horizontal">

using helpers this should be:

DIV(_data-role='controlgroup', _data-type='horizontal')

but the code above raises a Python error:

SyntaxError: keyword can't be an expression

what shoud I use in the place of dashes?

thanks.