What is the expected output of the following code? ``python list = ['Peter', 'Paul', 'Mary'] def list(data): del data[1] data[1] = 'Jane' return data print(list(list)) ``

Question

list = ['Peter', 'Paul', 'Mary']
def list(data):
 del data[1]
 data[1] = 'Jane'
 return data
print(list(list))

Options

• AThe code is erroneous.
• B['Peter', 'Paul', 'Mary']
• C['Peter', 'Jane']
• D['Paul', 'Mary', 'Jane']

• A
  85% (34)
• B
  5% (2)
• C
  3% (1)
• D
  8% (3)

Explanation

Option A is correct because the variable name list is first assigned to the list ['Peter', 'Paul', 'Mary'], but the subsequent def list(data): overwrites that name, rebinding list to the function. By the time print(list(list)) executes, list refers only to the function, so list(list) passes the function itself as data; then del data[1] attempts to delete an index from a function object, which raises a TypeError at runtime.

Option C is the most tempting distractor - if the function had received the original list, del data[1] would remove 'Paul' (leaving ['Peter', 'Mary']) and data[1] = 'Jane' would produce ['Peter', 'Jane'], but that call never succeeds. Options B and D are both wrong for the same root reason: the code never reaches a valid return, let alone preserves or rearranges the original list intact.

Memory tip: Think of Python names as sticky labels - def list(...) peels the label off the list and slaps it onto the function, so the original list becomes unreachable. Whenever you see a user-defined name colliding with an earlier assignment (or a built-in like list, dict, str), expect shadowing bugs.

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