factory.py

"""
	Factory
	- Factory is a creational design pattern that provides an interface for creating objects
	in a superclass, but allows subclasses to alter the type of objects that will be created.

	3 component => 1. creator, 2. product, 3. client
"""
from abc import ABC, abstractmethod


class File(ABC): # creator
	def __init__(self, file):
		self.file = file

	@abstractmethod
	def make(self):
		pass

	def call_edit(self):
		product = self.make()
		result = product.edit(self.file)
		return result


class JsonFile(File): # creator
	def make(self):
		return Json()


class XmlFile(File): # creator
	def make(self):
		return Xml()


class Json: # product
	def edit(self, file):
		return f'Working on {file} Json...'


class Xml: # product
	def edit(self, file):
		return f'Working on {file} Xml...'


def client(file, format): # client
	formats = {
		'json': JsonFile,
		'xml': XmlFile
	}
	result = formats[format](file)
	return result.call_edit()


print(client('show', 'xml'))