Python Coding Challange - Question with Answer (01140725)

 

Explanation:

✅ Line 1:

import array

This imports Python's built-in array module (used for typed arrays).

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✅ Line 2:

a = array.array('i', [1, 2, 3])

• Creates an array of type 'i', which means signed integers.

• The array a now holds: [1, 2, 3].

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❌ Line 3:

a.append('4')

Here’s the problem:

• '4' is a string, not an integer.

• But the array is declared to hold only integers ('i').

• So appending a string causes a TypeError.

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❗ Error Message:

TypeError: an integer is required (got type str)

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✅ Correct Version:

To fix the error, pass an integer:

a.append(4)
print(a)

Output:

array('i', [1, 2, 3, 4])

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 Summary:

array.array('i', ...)only accepts integers.

Passing a string (even '4') causes a TypeError.

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