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What will be the output of the following Python code?
def f1(a,b=[]):
b.append(a)
return b
print (f1(2,[3,4]))
  • a)
    [3,2,4]
  • b)
    [2,3,4]
  • c)
    [3,4,2]
  • d)
    Error
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
What will be the output of the following Python code?def f1(a,b=[]):b....
In the code shown above, the integer 2 is appended to the list [3,4]. Hence, the output of the code is [3,4,2]. Both variables a and b are local variables.
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Community Answer
What will be the output of the following Python code?def f1(a,b=[]):b....
Explanation:
The given code defines a function named f1 that takes two arguments, 'a' and 'b'. The default value for the 'b' argument is an empty list.

Function Execution:
When the function f1 is called with the arguments 2 and [3,4], the following steps occur:
1. The value 2 is appended to the list [3,4], resulting in [3,4,2].
2. The modified list [3,4,2] is returned.
3. The print statement outputs the returned list, which is [3,4,2].

Therefore, the correct answer is option (c) [3,4,2].
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What will be the output of the following Python code?def f1(a,b=[]):b.append(a)return bprint (f1(2,[3,4]))a)[3,2,4]b)[2,3,4]c)[3,4,2]d)ErrorCorrect answer is option 'C'. Can you explain this answer?
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