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In a Flask application, how do you correctly launch a function to run asynchronously using Python's threading module?

easy📝 Syntax Q3 of 15
Flask - Background Tasks
In a Flask application, how do you correctly launch a function to run asynchronously using Python's threading module?
ACall <code>your_function()</code> directly inside the route
BUse <code>Thread(target=your_function).start()</code> inside a route handler
CUse <code>async def your_function()</code> and call it with <code>await</code> in the route
DImport <code>multiprocessing</code> and call <code>Process(target=your_function).run()</code>
Step-by-Step Solution
Solution:

  1. Step 1: Use threading.Thread

    To run a function asynchronously in Flask, you can use Python's threading module to start a new thread.

  2. Step 2: Correct syntax

    The correct way is to create a Thread object with the target function and call .start() to run it in the background.

  3. Final Answer:

    Use Thread(target=your_function).start() -> Option B

  4. Quick Check:

    Starting the thread with .start() runs the function asynchronously [OK]
Quick Trick: Use Thread(target=func).start() to run async tasks [OK]
Common Mistakes:
MISTAKES
  • Calling the function directly instead of starting a thread
  • Using async/await without an async event loop in Flask
  • Using multiprocessing.Process but calling .run() instead of .start()

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