[web2py] _title tag for looped OPTION attribute

[web-dev-m]

I may not be following some sort of convention, but I'm trying to
build a selector form element with a for loop from a query.  It
renders when i do it manually:

<select>
<option title="test test test test test">
</select>

Howerver,

when I do:
    files=db(myquery).select()
    files_as_list=[]
    for x in files:
        files_as_list+=(OPTION(x.resource_title[0:50], value=x.id,
_title=x.resource_title, ))

the resulting html doesnt have the title attribute.  I am running
1.99.2.

Any suggestions?