Use python language for the following exercise:

1. Learn how to represent a graph in python using a tuple, an adjacency list, and an adjacency matrix.
2. Learn how to draw a graph interactively on screen using turtle

Exercise: 1

Create an interactive graph display screen.

1.On a key press you should be able to create nodes on the screen and name them

2.On a key press you should be able to select the nodes displayed in the previous step and connect them

3.You may add delete node and delete edge actions as well

4.Select a node/edge this should highlight the node/edge using colors

4.On pressing a save button or key the graph should be written in an excel sheet as .csv format

File1 - NodeList

NodeId(Integer),Node (Integer) , xcoordinate(integer), ycoordinate(integer)

File2-EdgeList

EdgeID(Integer),Node(Integer),Node(Integer)