Iterating through a list of objects that belong to an object

I am trying to build my own network of nodes and analyse it. I have a Node class and a Network class:

class Node():

    def __init__(self, ID, team):
        self.ID = ID
        self.team = team
        self.edge = (None, None)


class Network():

    def __init__(self, number_of_green_nodes):
        self.green_network = [Node(ID = i, team = "Green") for i in range(number_of_green_nodes)]

I then create a network object, network1, consisting of 10 Node objects:

network1 = network.Network(10)

I now want to iterate through the network’s list of nodes, and access some attributes of the Node objects. For instance, to access the ID attribute of each of the nodes, I do the following:

for i in network1.green_network:
    print(network1.green_network[i].ID)

But this results in the following error:

TypeError: list indices must be integers or slices, not Node

So how is this done?

>Solution :

network1.green_network is a list and with the for cycle you’re directly iterating through that list:

for node in network.green_network:
    print(node.ID)

Or, if you need the index, that is useless since it is the same as the ID for how you initialize the network:

for i, node in enumerate(network.green_network):
    print(f'Node in position {i} has ID {node.ID}')