Adding a line to bar chart

Question

I have a simple problem , i am trying to add a reference line on the head of a bar keeping my value axis line same. For example

enter image description here

I want to add that blue line on the top of my reference bar.

Answer 1

I used following code to insert a line into a PowerPoint slides using python-pptx. The parameters are left, top, width and height for each Inches listed below. Inches(0) in width parameter inserts vertical line and Inches(0) in height parameter inserts horizontal line.

from pptx import Presentation
from pptx.enum.shapes import MSO_SHAPE

prs = Presentation()
slide = prs.slides.add_slide(blankSlideLayout)
line1 = slide.shapes.add_shape(MSO_SHAPE.LINE_INVERSE, Inches(6), Inches(6), Inches(1), Inches(2))