Let's consider a starting implementation of this data structure in Python. Navigate to the Chapter16/network.py file, as follows:
# Chapter16/network.pyimport timefrom random import choiceclass Network: def __init__(self, primary_key, primary_value): self.primary_key = primary_key self.data = {primary_key: primary_value} def __str__(self): result = '{\n' for key in self.data: result += f'\t{key}: {self.data[key]};\n' return result + '}' def add_node(self, key, value): if key not in self.data: self.data[key] = value return True return False # precondition: the object has more than one node left def refresh_primary(self): del self.data[self.primary_key] self.primary_key ...