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class DNSRecord: def __init__ (self, hostname, ip_address): self.hostname=hostname self.ip_address=ip_address class AddressTranslator: def __init__(self): self.addresses={"www.google.com":"142.251.32.36", "www.facebook.com":"157.240.22.35", "www.sfusd.edu":"23.185.0.3"} def translate_hostname(self,hostname): address=self.addresses.get(hostname) ip_address=DNSRecord(hostname, address) if ip_address: print(f"IP address for {hostname}:{ip_address}") else: print(f"{hostname} cannot be found") def add_translation(self, hostname, ip_address): self.new_hostname=input("please enter a new hostname: ") self.new_ip_address=input("Enter the corresponding IP address") addresses[new_hostname]=new_ip_address print(f"Hostname '{new_hostname}' is added to DNS directory") def delete_translation(self, hostname): if delete_hostname in addresses: del addresses[delete_hostname] print(f"Hostname {delete_hostname} is deleted from DNS") else: print(f"Hostname {delete_hostname} is not found in DNS") address_translator=AddressTranslator() main_menu=str(input("====ACCOUNT MENU====\n1. Translate a Hostname to an IP Address\n2. Add a Translation\n3. Delete a Translation\n4. Exit\n\nEnter Choice: ")) while main_menu!="4": if main_menu=="1": hostname=input("Please enter a hostname: ") address_translator.translate_hostname(hostname) if main_menu=="2": new_hostname=input("please enter a new hostname: ") new_ip_address=input("Enter the corresponding IP address") address_translator.add_translation(new_hostname, new_ip_address) if main_menu=="3": delete_hostname=input("please enter the hostname to delete: ") address_translator.delete_translation(delete_hostname) else: print("input is invalid") print("thanks! Bye!")
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