Python-сообщество

#!/usr/bin/python
# -*- coding: utf-8 -*-
class File:
	def __init__(self, **kwargs):
		for k, v in kwargs.items():
			setattr(self, k, v)
		
	def getHost(self):
		return FileDb.hosts[self.host_id]
class Host:
	__slots__ = ('id', 'name', 'enc', 'paths', 'files', )
	files = []
	def __init__(self, **kwargs):
		for k, v in kwargs.items():
			setattr(self, k, v)
	
	def addFile(self, fullname, size):
		# parsing fullname
		path, name = fullname.rsplit('/', 1)
		if '.' in name: name, ext = name.rsplit('.', 1)
		else: ext = None
		file_inst = File(
			name = name,
			ext = ext,
			size = size
		)
		
		self.files.append(file_inst)
		
		return file_inst
		
	def countFiles(self):
		return len(self.files)
		
		
class FileDb:
	hosts = {}
	
	def __init__(self):
		for x in range(5):
			self.hosts[x] = Host(
				id=x,
				name='name_%s.ru' % x
			)
	
	def getHost(self, id):
		try:
			return self.hosts[id]
		except KeyError:
			pass
			
	def countFiles(self):
		res = 0
		for id in self.hosts:
			res += self.hosts[id].countFiles()
		return res
		
db = FileDb()
db.getHost(1).addFile('/fdg/dgfdf/dfg.txt',565)
print db.countFiles()# выводит 5, т.е к каждому хосту был добавлен файл

class Host:
	__slots__ = ('id', 'name', 'enc', 'paths', 'files', )
	
	def __init__(self, **kwargs):
		self.files = []
		for k, v in kwargs.items():
			setattr(self, k, v)