Python Coding Challange - Question With Answer(01171224)

 

Explanation:

1. Tuple t Creation:

• t is a tuple with three elements:
  • 1 → an integer
  • [2, 3] → a mutable list
  • 4 → another integer
• So, t looks like this:
  
  
• t = (1, [2, 3], 4)

2. Tuple Immutability:

   • In Python, tuples are immutable. You cannot change the tuple itself (e.g., reassign or delete elements directly).
   • However, tuples can hold mutable objects like lists. If a tuple contains a list, you can modify the list.

3. Modifying the List:

   • t[1] refers to the list [2, 3] (the second element of the tuple).
   • t[1][0] = 100 changes the first element of the list [2, 3] to 100.
   • After this operation, the list becomes [100, 3].

4. Resulting Tuple:

   • The tuple t remains intact (as a container), but the list inside it has been modified.
   • The final tuple now looks like:

     t = (1, [100, 3], 4)

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Output:

(1, [100, 3], 4)

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Key Takeaways:

1. Tuples are immutable, but they can hold mutable objects like lists.
2. You can modify the contents of mutable objects inside a tuple.
3. Direct reassignment like t[1] = [100, 3] would raise an error because it tries to modify the tuple structure.