Python Loop Assessment

This project contains a collection of Python functions that demonstrate the use of loops, conditionals, and basic algorithmic thinking. The project also includes unit tests using Python's unittest framework to verify that each function works correctly.

📌 Project Overview

The goal of this assessment is to practice using loops in Python to solve common programming problems such as:

• Summing numbers
• Counting even numbers
• Calculating factorials
• Generating multiplication tables
• Working with strings
• Finding prime numbers
• Creating patterns
• Building multiplication grids

Each function is implemented in assessment1.py and tested using automated unit tests.

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📂 Project Structure

project-folder/
│
├── assessment1.py      # Main file containing all loop-based functions
├── test_assessment.py  # Unit tests for the functions
└── README.md           # Project documentation

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⚙️ Functions Implemented

1. sum_to_n(n)

Returns the sum of numbers from 1 to n.

Example:

sum_to_n(5)
# Output: 15

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2. count_even_numbers(n)

Counts how many even numbers exist between 1 and n (inclusive).

Example:

count_even_numbers(10)
# Output: 5

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3. factorial(n)

Calculates the factorial of n using a loop.

Example:

factorial(5)
# Output: 120

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4. multiplication_table(n)

Returns the multiplication table of n from 1 to 10.

Example:

multiplication_table(3)
# Output: [3, 6, 9, 12, 15, 18, 21, 24, 27, 30]

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5. sum_of_digits(num)

Returns the sum of all digits in a number.

Example:

sum_of_digits(1234)
# Output: 10

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6. count_vowels(text)

Counts the number of vowels (a, e, i, o, u) in a string.

Example:

count_vowels("hello")
# Output: 2

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7. find_primes(n)

Returns a list of prime numbers from 2 up to n.

Example:

find_primes(10)
# Output: [2, 3, 5, 7]

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8. reverse_string(text)

Reverses a given string.

Example:

reverse_string("hello")
# Output: "olleh"

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9. pyramid_pattern(n)

Generates a pyramid pattern of stars.

Example:

pyramid_pattern(3)
# Output:
["*", "**", "***"]

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10. multiplication_grid(n)

Creates an n × n multiplication grid using nested loops.

Example:

multiplication_grid(3)
# Output:
[
 [1, 2, 3],
 [2, 4, 6],
 [3, 6, 9]
]

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🧪 Running the Tests

This project uses Python's built-in unittest framework.

To run the tests:

python -m unittest

or

python test_assessment.py

All tests should pass if the functions are implemented correctly.

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🛠 Requirements

• Python 3.x
• No external libraries required

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🎯 Learning Objectives

This project demonstrates:

• Using for loops
• Working with ranges
• Applying conditional logic
• Using nested loops
• Performing string manipulation
• Writing unit tests

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📄 License

This project is open-source and available for educational purposes.

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👨‍💻 Author

Name : Letsoenyo Clen Bongane