[reportlab-users] can't draw more then one line on a canvas

[Timothy Smith]

how come i can't draw more then on line on my canvas? it makes one line 
as i expected it to be, but the second is this kind of little mutant 
line that's more like a dot. the sample below is a snippet of my code.

from reportlab.pdfgen import canvas
c = canvas.Canvas('tmp.pdf')
c.lines(c.line(6*cm, 14.7*cm, 10*cm, 14.7*cm),c.line(6*cm, 12.7*cm, 
6*cm, 12.7*cm))
c.save()