Exploring Python Collections

What is a collection in Python?

• A collection in Python is a single item data type.

• A collection in Python is a method for sorting data.

• A collection in Python is a function that processes data.

• A collection in Python is a data structure that holds multiple items, such as lists, tuples, sets, and dictionaries.

Name the built-in collection types in Python.

• array, map, list, set

• list, tuple, set, queue

• list, tuple, set, dict

• list, tuple, array, dict

What is the difference between a list and a tuple?

• A list is mutable and defined with [], while a tuple is immutable and defined with ().

• A list is defined with {}, while a tuple is defined with []

• A list can only contain numbers, while a tuple can contain any data type.

• A list is immutable and defined with [], while a tuple is mutable and defined with ().

How do you create a list in Python?

• You create a list in Python using curly braces, e.g., my_list = {1, 2, 3}.

• You create a list in Python using parentheses, e.g., my_list = (1, 2, 3).

• You create a list in Python by using the list() function, e.g., my_list = list(1, 2, 3).

• You create a list in Python using square brackets, e.g., my_list = [1, 2, 3].

What method would you use to add an item to a list?

• Use the 'remove' method.

• Use the 'extend' method.

• Use the 'append' method.

• Use the 'insert' method.

How can you remove an item from a list?

• Use list.remove(value) or list.pop(index) to remove an item from a list.

• list.clear() to remove all items from a list.

• list.delete(index) removes an item from a list.

• Use list.add(value) to insert an item into a list.

What is a dictionary in Python?

• A dictionary is a type of list in Python.

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

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

• A dictionary in Python is a single value.

How do you access a value in a dictionary?

• Use dict[key] or dict.get(key) to access a value in a dictionary.

• Access values using dict.key.

• Call dict.fetch(key) to get a value.

• Use dict.value(key) to retrieve a value.

What is the purpose of the 'set' collection?

• To store elements in a specific order.

• To allow duplicate elements.

• To perform mathematical operations on numbers.

• The purpose of the 'set' collection is to store unique elements.

How do you create a set in Python?

• Using square brackets, e.g., [1, 2, 3]

• Creating a list with list() function

• Defining a dictionary with curly braces, e.g., {key: value}

• You can create a set in Python using set() or by using curly braces, e.g., set() or {1, 2, 3}.