Lists and Tuples in Python

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What is a tuple in Python?

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A tuple is an ordered collection of elements that is immutable, meaning it cannot be changed after creation.

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How do you declare a tuple in Python?

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You declare a tuple by placing a comma-separated list of elements within parentheses, e.g., a = (1, 2, 3).

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What is the difference between a list and a tuple in Python?

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The main difference is that lists are mutable (can be changed) while tuples are immutable (cannot be changed).

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How do you access elements in a tuple?

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You access elements in a tuple using indexing, e.g., tuple_name[index].

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What will be the output of the following code: y = (1, 2, 3); print(y[1])?

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The output will be 2, as indexing starts from 0.

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Can a tuple contain different data types?

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Yes, a tuple can contain elements of different data types, such as integers, strings, and lists.

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What is an empty tuple in Python?

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An empty tuple is declared with empty parentheses, e.g., empty_tuple = ().

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How do you convert a list to a tuple in Python?

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You can convert a list to a tuple using the tuple() function, e.g., tuple_name = tuple(my_list).

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What is the output of the following code: my_tuple = (1, 2, 3); print(my_tuple[-1])?

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The output will be 3, as negative indexing starts from the end.

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What is a list in Python?

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A list is an ordered collection of elements that is mutable, meaning it can be changed after creation.