Mastering Python Data Structures

What is a tuple in Python?

• A tuple is a mutable sequence type in Python.

• A tuple is defined by items in square brackets.

• A tuple is an immutable sequence type in Python, defined by items in parentheses.

• A tuple can be modified after creation.

How do you create a tuple?

• You create a tuple by using square brackets, e.g., [1, 2, 3].

• You create a tuple by using parentheses, e.g., (1, 2, 3).

• You create a tuple by using curly braces, e.g., {1, 2, 3}.

• You create a tuple by using angle brackets, e.g., <1, 2, 3>.

Can tuples be modified after creation?

• Tuples can have their elements changed after creation.

• No, tuples cannot be modified after creation.

• Yes, tuples can be modified after creation.

• Tuples can be resized after creation.

What is the main difference between a list and a tuple?

• Lists are faster than tuples in terms of performance.

• The main difference is that lists are mutable and tuples are immutable.

• Tuples are created using square brackets, while lists use parentheses.

• Lists can contain only numbers, while tuples can contain any data type.

How do you access elements in a tuple?

• Use indexing with square brackets, e.g., tuple[0] for the first element.

• Access elements using parentheses, e.g., tuple(0) for the first element.

• Use curly braces to access elements, e.g., tuple{0} for the first element.

• Elements can only be accessed by iterating through the tuple.

What is a set in Python?

• A set can contain duplicate elements in Python.

• A set is a type of list in Python.

• A set is an ordered collection of elements in Python.

• A set is an unordered collection of unique elements in Python.

How do you create a set?

• Use list() or []

• Define a dictionary with {}

• Use set() or {}

• Create a tuple with ()

What are the main characteristics of a set?

• A set is unordered, contains unique elements, and supports mathematical operations.

• A set is a collection of elements that can be modified.

• A set is ordered and can contain duplicate elements.

• A set only contains numeric values and no other types.

How do you convert a list to a set?

• array(your_list)

• set(your_list)

• list(your_list)

• convert(your_list)

What is a dictionary in Python?

• A dictionary in Python is a single value.

• A dictionary is a type of list in Python.

• A dictionary in Python is a collection of key-value pairs.

• A dictionary is a collection of ordered pairs in Python.