python - How to add a chart to a PDF using ReportLab -

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i've python project generates pdf data in web app in python using reportlab. it's building large text string , adding canvas, , generating pdf canvas. i've been asked add line chart in middle of pdf. i've found lot of info out there on how turn chart directly pdf in reportlab, example this:

adding graph reportlab pdf

but nothing how add chart pdf part of other formatted content. here's code i'm working with:

class genpdf(r): @tornado.web.authenticated def get(self):     """takes text , generates pdf"""     msg = gen_report(subject, test_name)      filename = "filename.txt"     self.set_header("content-type", 'application/pdf; charset="utf-8"')     self.set_header("content-disposition", "attachment; filename=%s.pdf" %filename)                       io = stringio.stringio()     c = canvas.canvas(io, pagesize=a4)      imagem = canvas.imagereader(stringio.stringio(open('logo.jpeg', 'rb').read()))     c.drawimage(imagem, 430, 688, 100, 100) # draw in bottom left, 2 inches high , 2 inches wide      text = c.begintext()     text.settextorigin(100, 700)     text.setfont("times-roman", 16)     text.textline("test report")     text.setfont("times-roman", 12)     text.textlines(msg)     text.textlines(class_map[test_name]['blurb'])         text.textline("_____________________________________________________________________________")     text.textlines(class_map[test_name]['scale'])         text.textline("_____________________________________________________________________________")     text.setfont("times-roman", 8)      text.textlines(disclaimer)     c.drawtext(text)       c.showpage()     c.save()      pdf=io.getvalue()     io.close()      self.write(pdf)

where in add code add chart? tried adding drawing can't seem figure out can add drawing canvas, or pdf itself.

you can manipulate size , position chart on page this:

drawing = drawing(350, 190) lc = horizontallinechart() lc.x = 10 lc.y = 10 lc.height = 150 lc.width = 330 ... drawing.halign = 'center' drawing.add(lc)

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