Python Beginner Assessment

Welcome to the Python Beginner Coding Assessment!
In this project, you’ll build a simple calculator that runs in the console — no graphics or frameworks needed.

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Objective

Create a program that performs addition, subtraction, multiplication, and division based on user input.

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What You’ll Learn

By completing this assessment, you’ll practice:

• Getting user input with input()
• Performing arithmetic operations
• Using functions to organize your code
• Applying if/elif/else conditionals
• Handling invalid input and errors
• Optionally repeating actions with loops

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Requirements

Your program must:

1. Display a menu with four operation choices:

   Select operation:
   1. Add
   2. Subtract
   3. Multiply
   4. Divide
   

2. Ask the user to select an operation (1–4).
3. Ask for two numbers as input.
4. Perform the selected operation and print the result.
5. Handle the following cases:
   • Division by zero → show an error message
   • Invalid menu choice → prompt again
   • Non-numeric input → display an error message
6. (Optional) Ask if the user wants to perform another calculation before exiting.

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Getting Started

1. Clone This Repository

git clone https://github.com/your-org/python-calculator-assessment.git
cd python-calculator-assessment

Or download the ZIP file and open it in your preferred editor (VS Code, IDLE, etc.).

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2. Create Your File

Create a file named:

calculator.py

You’ll write all your code in this file.

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Running the Program

1. Save your file as calculator.py.
2. Open your terminal and navigate to the project directory.
3. Run the program:

   python calculator.py

   or on some systems:

   python3 calculator.py

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Example Output

Select operation:
1. Add
2. Subtract
3. Multiply
4. Divide
Enter choice (1/2/3/4): 3
Enter first number: 4
Enter second number: 7
Result: 28
Do you want to perform another calculation? (yes/no): no
Goodbye!

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Bonus Challenges

• Add power (xⁿ) or modulus (%) operations
• Format results to two decimal places
• Store calculation history in a list
• Let users chain calculations without restarting

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Submission

When you’re done:

git add calculator.py
git commit -m "Complete calculator assessment"
git push origin main

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Resources

• Python Official Tutorial
• GitHub Getting Started

This exercise is part of the HireUp Beginner Python Series — designed to help you build confidence with real coding tasks.