Input and output in Python
These three short exercises will help you practice your Python programming skills on reading input from a user, declaring variables, and doing basic operations on numbers (addition, subtraction, multiplication etc). Don’t worry if you get stuck – the solutions are provided.
To get started, open Visual Studio Code on your computer.
Within the .zip file ‘Supporting files and solutions‘ you will see the folder lab 3. Use the exercise1.py, exercise2.py and exercise3.py files provided to you to write the code for each of the exercise below.
Exercise 1
The problem you need to solve
The Central Bank of Python gives you a loan with an interest rate of 4%. Write a Python program to read the loan amount from the user and calculate and print the total interest the customer will pay in a year. (interest = amount * (interest rate / 100)).
Prepare
In Visual Studio Code, open theexercise1.pyfile. You will see a skeleton code with multiple TODO comments to help you complete this exercise. Each TODO block you will see (they appear as Python comments with # and the keyword TODO) is a small sub-task for you.
Complete the code
Have a look at all the TODO comments and complete the code required for each.Running the code: Open a terminal (click “Terminal” → “New Terminal” from the menu bar on the top) and typepython exercise1.pyin the terminal pane (and hit the ENTER key) to run the program.
❯ python exercise1.py
What is the amount you want to borrow? 1000
The interest you will pay in a year for £1000.0 with an interest rate of 4% is £40.0Exercise 2
The problem you need to solve
F = (C * 1.8) + 32 (where F is Fahrenheit and C is Celsius).Prepare
In Visual Studio Code, open theexercise2.pyfile. You will see a skeleton code with multiple TODO comments to help you complete this exercise. Each TODO block you will see (they appear as Python comments with # and the keyword TODO) is a small sub-task for you.
Complete the code
Have a look at all the TODO comments and complete the code required for each.Running the code: Open a terminal, if not already opened, (click “Terminal” → “New Terminal” from the menu bar on the top) and typepython exercise2.pyin the terminal pane (and hit the ENTER key) to run the program.
❯ python exercise2.py
Please provide temperature in Celsius: 32
Temperature in Fahrenheit: 89.6Exercise 3
The problem you need to solve
Prepare
In Visual Studio Code, open theexercise3.pyfile. You will see a skeleton code with multiple TODO comments to help you complete this exercise. Each TODO block you will see (they appear as Python comments with # and the keyword TODO) is a small sub-task for you.
Complete the code
Have a look at all the TODO comments and complete the code required for each.Running the code: Open a terminal, if not already opened, (click “Terminal” → “New Terminal” from the menu bar on the top) and typepython exercise3.pyin the terminal pane (and hit the ENTER key) to run the program.
Expected output:
❯ python exercise3.py
Please provide the first number: 6
Please provide the second number: 2
Addition: 8.0
Subtraction: 4.0
Multiplication: 12.0
Division: 3.0Solutions
Once you have attempted the exercises, check the solutions to see how you did. You can find these in the folder lab 3 of the .zip file ‘Supporting files and solutions‘ on page 1.5 Python, Visual Studio Code, and course files.
Please do not look at the solutions before you attempt the exercises.
An Introduction to Programming Using Python
An Introduction to Programming Using Python
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