OOP Design

Observer on a Market-Data Bus

Difficulty

Asked at Hudson River Trading

Read the problem, hints and solution here. The editor needs a bigger screen: open this page on a laptop to write and run your code.

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Language: Python 3.12Bus

class Bus:
    """..."""

    def __init__(self):
        # ...
        pass

    def subscribe(self, name, callback):
        # ...
        pass

    def unsubscribe(self, name):
        # ...
        pass

    def publish(self, tick):
        # ...
        pass

    def subscribers(self):
        # ...
        pass

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