Chapter 3: Python Data Types Exercises

Exercise 1

List Manipulation

Create a program that demonstrates various list operations.

                        # Start with this list

                        fruits = ["apple", "banana", "cherry", "date"]

                        # Perform these operations:

                        # 1. Add "elderberry" to the end

                        # 2. Insert "blueberry" at position 2

                        # 3. Remove "banana"

                        # 4. Reverse the list

                        # 5. Sort the list alphabetically

Use append() to add an item

Use insert() to add at a specific position

Use remove() to delete an item

Use reverse() to reverse the list

Use sort() to sort the list

Print the list after each operation

Exercise 2

Tuple Operations

Explore the properties of tuples and practice basic operations.

                        # Create a tuple

                        colors = ("red", "green", "blue", "yellow", "red")

                        # Perform these operations:

                        # 1. Count how many times "red" appears

                        # 2. Find the index of "blue"

                        # 3. Try to change "green" to "orange" (observe the error)

                        # 4. Create a new tuple by concatenating with ("purple", "pink")

Use count() to count occurrences

Use index() to find position of an element

Try to modify an element (will raise error)

Create a new tuple using + operator

Print the results

Hint

Tuples are immutable, so you cannot change their elements once created.

Exercise 3

Dictionary Operations

Create and manipulate a dictionary to store student information.

                        # Create a student dictionary

                        student = {

                            "name": "John Doe",

                            "age": 20,

                            "major": "Computer Science",

                            "gpa": 3.8

                        }

                        # Perform these operations:

                        # 1. Add a new key "courses" with value ["Python", "Algorithms"]

                        # 2. Update the "age" to 21

                        # 3. Remove the "gpa" key

                        # 4. Check if "major" exists in the dictionary

Add a new key-value pair

Update an existing value

Remove a key-value pair

Check for key existence

Print all keys and values

Exercise 4

Set Operations

Practice working with sets and their mathematical operations.

                        # Create two sets

                        A = {1, 2, 3, 4, 5}

                        B = {4, 5, 6, 7, 8}

                        # Perform these operations:

                        # 1. Union of A and B

                        # 2. Intersection of A and B

                        # 3. Difference between A and B

                        # 4. Symmetric difference between A and B

                        # 5. Check if A is a subset of B

Use union() or | operator

Use intersection() or & operator

Use difference() or - operator

Use symmetric_difference() or ^ operator

Use issubset() method

Print the results

Exercise 5

String Methods

Practice various string methods and operations.

                        # Start with this string

                        text = " Python Programming is Amazing! "

                        # Perform these operations:

                        # 1. Remove leading/trailing whitespace

                        # 2. Convert to uppercase

                        # 3. Replace "Amazing" with "Fantastic"

                        # 4. Split into words

                        # 5. Check if the string starts with "Python"

                        # 6. Find the position of "Programming"

Use strip() to remove whitespace

Use upper() to convert to uppercase

Use replace() to change text

Use split() to create a word list

Use startswith() to check prefix

Use find() to locate a substring

Exercise 6

Number Operations

Practice working with different numeric types and operations.

                        # Work with different number types

                        integer_num = 15

                        float_num = 7.5

                        complex_num = 2 + 3j

                        # Perform these operations:

                        # 1. Convert integer to float and vice versa

                        # 2. Perform arithmetic operations

                        # 3. Use math module functions (sqrt, pow)

                        # 4. Use built-in functions (abs, round)

                        # 5. Work with complex numbers

Convert between int and float

Try different arithmetic operations

Import and use math module functions

Use abs() and round() functions

Perform operations with complex numbers

Hint

Remember to import the math module: import math

Exercise 7

Type Conversion

Practice converting between different data types.

                        # Start with these values

                        num_str = "123"

                        float_str = "45.67"

                        num_list = [1, 2, 3, 4, 5]

                        tuple_data = (10, 20, 30)

                        # Perform these conversions:

                        # 1. Convert string to integer

                        # 2. Convert string to float

                        # 3. Convert list to