Creating objects of derived class in base class - python

I have an abstract class called IDataStream and it has one method. I create two implementations for this abstract class called IMUDataStream, GPSDataStream. In future there is a possibility that I may add another implementation of IDataStream abstract class. I have another class called DataVisualizer that visualizes all the data pulled by different DataStream classes.

In future if I add another DataStream implementation of the IDataStream abstract class, I should not be modifying the DataVisualizer class to visualize the data. Is there a way to create objects of all the derived classes of the IDataStream class, add it to a list and iterate through the list and use it to call the methods that will give me the data ?

Please note that I'm new to python and design patterns. Trying to learn. This may be a complete dumb question and total madness. I actually have a requirement for this. If this can be achieved through a design pattern I request the reader to point me to the material. Help much appreciated. Thanks !

#!/usr/bin/env python3

from abc import ABC, abstractmethod

class IDataStream(ABC):
    def get_data(self):
        pass           

class IMUDataStream(IDataStream):
    def __init__(self):
        self.__text = "this is IMU data"

    def get_data(self):
        print(self.__text)

class GPSDataStream(IDataStream):
    def __init__(self):
        self.__text = "this is GPS data"

    def get_data(self):
        print(self.__text)

class DataVisualizer:
    def __init__(self):
        # somehow create objects of all derived classes of IDataStream here and call the get_data() function
        # even if I add another derived class in the future. I should not be modifying the code here