initial set up of prog hist mesa abm for mesa 3.1.3 https://programminghistorian.org/en/lessons/simulating-historical-communication-networks-python

demo.py

import mesa

class LetterAgent(mesa.Agent):
    def __init__(self, model):
        super().__init__(model)
        self.letters_sent = 0
        self.letters_received = 0
        
    def step(self):
        print(f"Hi, I am agent {self.unique_id}.")

class LetterModel(mesa.Model):
    def __init__(self, N: int, seed=None):
        super().__init__(seed=seed)
        self.num_agents = N
        
        for _ in range(self.num_agents):
            LetterAgent(self)

    def step(self):
        self.agents.shuffle_do("step")

model = LetterModel(10)
model.step()