class CompressionFactory:
        compression = {}
        def __new__(cls):
            cls.compression = {"rar": Rar(), "tar": Tar(), "zip": Zip()}
            return cls

        @classmethod
        def getCompression(cls, method):
            return cls.compression[method]

import abc
class File(abc.ABC):
    def __init__(self, txt):
        self.txt = txt
    def __str__(self):
        return self.txt


class Compression(abc.ABC):
    @abc.abstractmethod
    def compress(file):
        pass

class Rar:
    @staticmethod
    def compress(file):
        print(f"Rar compresstion {file}")

class Tar:
    @staticmethod
    def compress(file):
        print(f"Tar compresstion {file}")

class Zip:
    @staticmethod
    def compress(file):
        print(f"Zip compresstion {file}")

file = File("Text File")
factory = CompressionFactory()
CompressionFactory.getCompression("rar").compress(file)
CompressionFactory.getCompression("tar").compress(file)
CompressionFactory.getCompression("zip").compress(file)