def rl_build_story(story):
from reportlab.lib.pagesizes import A4
from reportlab.platypus import SimpleDocTemplate
stream = MMStringIO()
doc = SimpleDocTemplate(stream, pagesize=A4)
LOG.debug('building %s', repr(story)[:80])
doc.build(story)
LOG.debug('build done, result is %d length.', stream.tell())
stream.seek(0, 0)
return stream