Challenge: Async Weather Reporter
In many real-world applications, you need to fetch data from several sources at once. Imagine you are building a weather dashboard that shows the current temperature for multiple cities. Instead of waiting for each city’s data to arrive one after another, you can use Python’s asyncio to fetch all the data concurrently, making your program much faster and more responsive. By simulating each weather data fetch as an asynchronous function that waits a random amount of time, you can see how asyncio.gather lets you run all these tasks together and collect their results as soon as they’re ready.
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Simulate fetching weather data for several cities concurrently using asynchronous functions. Each city's weather is "fetched" with a random simulated delay. Use asyncio.gather to run all fetches together and collect their results. After all weather data is fetched, print the results for each city.
- Each city's weather should be fetched by calling
fetch_weatherwith the city name. - All fetches should run concurrently using
asyncio.gather. - After fetching, print the weather result for each city.
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Can you show me an example of how to use asyncio.gather for this scenario?
How does asyncio.gather improve performance compared to sequential fetching?
Can you explain how to simulate asynchronous weather data fetching in Python?
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Completion показник покращився до 9.09Challenge: Async Weather Reporter
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In many real-world applications, you need to fetch data from several sources at once. Imagine you are building a weather dashboard that shows the current temperature for multiple cities. Instead of waiting for each city’s data to arrive one after another, you can use Python’s asyncio to fetch all the data concurrently, making your program much faster and more responsive. By simulating each weather data fetch as an asynchronous function that waits a random amount of time, you can see how asyncio.gather lets you run all these tasks together and collect their results as soon as they’re ready.
Swipe to start coding
Simulate fetching weather data for several cities concurrently using asynchronous functions. Each city's weather is "fetched" with a random simulated delay. Use asyncio.gather to run all fetches together and collect their results. After all weather data is fetched, print the results for each city.
- Each city's weather should be fetched by calling
fetch_weatherwith the city name. - All fetches should run concurrently using
asyncio.gather. - After fetching, print the weather result for each city.
Рішення
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