def add_fold_lines(c):
    """Add lines to show where to fold card"""
    # choose some colors
    c.setFillColor(lightgrey)
    # line settings
    c.setLineWidth(1)
    c.setDash(1,5) #n points on, m off
    # draw some lines
    c.line(width/2,0,width/2,height) #vertical
    c.line(0,height/2,width,height/2) #horz.
Add lines to show where to fold card
recipes/Python/535155_Generate_a_PDF_Greeting_Card/recipe-535155.py