Python Coding Challenge - Question with Answer (ID -220126)

 

🔹 Step 1: Create Dictionary

d = {'a': 1}

Dictionary d has one key:

{'a': 1}

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🔹 Step 2: Get Keys View

k = d.keys()

• d.keys() does NOT return a list

• It returns a dictionary view object: dict_keys

• This view is dynamic (live)

So k is linked to d, not a snapshot.

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🔹 Step 3: Modify Dictionary

d['b'] = 2

Now dictionary becomes:

{'a': 1, 'b': 2}

Because k is a live view, it automatically reflects this change.

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🔹 Step 4: Print Keys

print(list(k))

k now sees both keys:

['a', 'b']

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✅ Final Output

['a', 'b']

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🔥 Key Takeaways (Important for Interviews)

• dict.keys(), dict.values(), dict.items() are dynamic views

• They update automatically when the dictionary changes

• To freeze keys, use:

list(d.keys())

APPLICATION OF PYTHON FOR CYBERSECURITY