enter — Easy Playground

Called at the start of a with block; returns the context resource

Python Playground

class Timer:
    def __enter__(self):
        import time
        self.start = time.time()
        print("Timer started")
        return self

    def __exit__(self, *args):
        import time
        elapsed = time.time() - self.start
        print(f"Elapsed: {elapsed:.4f}s")

with Timer():
    total = sum(range(1000000))
    print(f"Sum: {total}")

Output

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__enter__ called at the start of a with block; returns the context resource. Implementing it lets you customize how Python interacts with your objects.

Challenge

Try modifying the code above to explore different behaviors. Can you extend the example to handle a new use case?

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__enter__ — Easy Playground

Challenge

enter — Easy Playground