Simple Host Name Resolver Example In Python

Resolver.py

import socket

class Resolver:
	def __init__(self):
		self._cache = {}
	def __call__(self, host):
		if host not in self._cache:
			self._cache[host] = socket.gethostbyname(host)
		return self._cache[host]
	def listCache(self):
		for c in self._cache:
			print("Host Name: ", c, " IP Address: ", self._cache[c])
	
r = Resolver()
r("google.com")
r("eksisozluk.com")
r("amazon.com")
r.listCache()