Method rename

recipes/Python/492212_dal4py/recipe-492212.py:224–242

(self, block, name)

    # Changes Directory/File Name
    def rename(self, block, name):
        assert type(block) is int and 2 <= block <= self.__blocks
        assert type(name) is str and 1 <= len(name) <= 255
        status = self.status(block)
        assert status == self.STATUS.directory or status == self.STATUS.file
        if status == self.STATUS.directory:
            data = self.__disk.read_directory(block)
        else:
            data = self.__disk.read_file(block)
        size = ord(data[2])
        root = data[:2]
        contents = data[size+3:]
        new_name = chr(len(name)) + name
        data = root + new_name + contents
        if status == self.STATUS.directory:
            self.__disk.write_directory(block, data)
        else:
            self.__disk.write_file(block, data)
        return block

    # Test For Existance
    def exists(self, block, name):