How to plot add vertical in line chart with labels and titles in power point using python-pptx module? ... For country ( Column A)=AR I am plotting line charts for different C=1,2 and 3 on same plot.

Now, I need to add vertex labels. One way to do this is to use the argument vertex_labels. However, I don't have any attribute name with the graph. What is a good way to give the vertex_labels using ...