node here is simple node implementation of what we have discussed so farclass nodedef __init__(selfdata=none)self data data self next none do not confuse the concept of node with node jsa server-side technology implemented in javascript the next pointer is initialized to nonemeaning that unless you change the value of nextthe node is going to be an end-point this is good ideaso that we do not forget to terminate the list properly you can add other things to the node class as you see fit just make sure that you keep in mind the distinction between node and data if your node is going to contain customer datathen create customer class and put all the data there one thing you may want to do is implement the __str__ method so that it calls the __str__ method of the contained object is called when the node object is passed to printdef __str__(self)return str(dataother node types we have assumed nodes that have pointer to the next node this is probably the simplest type of node howeverdepending on our requirementswe can create number of other types of nodes