[Solved] What is wrong with this Flask route code for monitoring task status? @app.route('/status/') def status(task_id): statuses = {'1': 'done'} return statuses[task_id] Assuming the URL is /status/2. | Flask

Flask - Background Tasks

What is wrong with this Flask route code for monitoring task status?

@app.route('/status/')
def status(task_id):
    statuses = {'1': 'done'}
    return statuses[task_id]

Assuming the URL is /status/2.

AKeyError occurs if task_id not in dictionary

BSyntax error in route decorator

CFunction missing return statement

Dtask_id parameter is not passed

Step-by-Step Solution

Solution:

Step 1: Analyze dictionary access method
Using statuses[task_id] raises KeyError if task_id is missing.
Step 2: Check URL task_id '2' presence in dictionary
'2' is not a key, so KeyError will occur.
Final Answer:
KeyError occurs if task_id not in dictionary -> Option A
Quick Check:
Direct dict access fails if key missing [OK]

Quick Trick: Use dict.get() to avoid KeyError on missing keys [OK]

Common Mistakes:

MISTAKES

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What is wrong with this Flask route code for monitoring task status?