Python Coding Challange - Question With Answer(01200125)

 

Explanation of the Code

This code demonstrates Python's iterable unpacking feature, specifically using the * operator to collect remaining elements into a list. Let's break it down step by step:

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Code Analysis

data = (1, 2, 3)  # A tuple with three elements: 1, 2, and 3.
a, *b = data # Unpacks the tuple into variables.

1. Unpacking Process:

   • a: The first element of the tuple (1) is assigned to the variable a.
   • *b: The * operator collects the remaining elements of the tuple into a list, which is assigned to b.

2. Output:

   
   print(a, b)

   • a contains 1.
   • b contains [2, 3] as a list.

3. Final Output:

   
   1, [2, 3]

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Key Concepts

1. Iterable Unpacking with *:

   • The * operator allows you to collect multiple elements from an iterable (e.g., list, tuple) into a single variable.
   • The result is stored as a list, even if the input is a tuple.

2. Variable Assignment:

   • The number of variables on the left must match the number of elements in the iterable, except when using *.
   • The * variable can be anywhere, but it must be used only once in an unpacking expression.