QUESTION 272 What is the expected output of the following code? try: raise BaseException: except BaseException: print('1') except Exception: print('2') except: print('3')

The correct answer is C. 1. Option C is correct because Python evaluates except clauses top to bottom, stopping at the first match. Since raise BaseException raises a BaseException instance, the very first clause - except BaseException: - matches immediately and prints '1'; the remaining clauses are never…

Question

QUESTION 272
What is the expected output of the following code?
try:
raise BaseException:
except BaseException:
print('1')
except Exception:
print('2')
except:
print('3')

Options

AThe code is erroneous.
B3
C1
D2

How the community answered

(39 responses)

A
5% (2)
B
5% (2)
C
79% (31)
D
10% (4)

Explanation

Option C is correct because Python evaluates except clauses top to bottom, stopping at the first match. Since raise BaseException raises a BaseException instance, the very first clause - except BaseException: - matches immediately and prints '1'; the remaining clauses are never evaluated.

A is wrong because the colon after raise BaseException in the question is a display artifact; the code itself is valid Python that runs without error.
B is wrong because the bare except: clause (which would print '3') is never reached - execution already jumped to the first matching handler.
D is wrong because except Exception: is never reached either, and even conceptually, BaseException sits above Exception in the hierarchy - Exception inherits from BaseException, not the other way around, so BaseException is the broader catch.

Memory tip: Think of except clauses like a bouncer line - Python picks the first door that opens, not the best fit. Always order your handlers from most-specific to most-general, or a broad BaseException at the top will swallow everything below it.

Community Discussion

No community discussion yet for this question.

Full PCEP-30-02 Practice