Python Learning Exercises

A structured collection of Python programming exercises organized by concept, progressing from fundamentals to multi-concept projects. Each section builds on skills developed in previous sections.

About This Repository

This repository documents my structured approach to mastering Python programming through multiple high-quality resources:

Platform	Focus	Status
Codedex	Interactive Python fundamentals and projects	In Progress
Python Crash Course, 3rd Edition	Introductory programming book by Eric Matthes (No Starch Press)	In Progress

Repository Structure

Exercises are organized into numbered folders that reflect a logical learning progression. Within each folder, files are numbered to indicate recommended completion order.

00_projects/              Multi-concept exercises combining all skills learned
01_variables_and_math/    Fundamentals: variables, arithmetic, type conversion
02_conditionals/          Control flow: if/elif/else, logical operators
03_loops/                 Iteration: while loops, for loops, range(), loop control
04_modules/               Importing and using Python modules (random)
05_lists/                 List creation, indexing, slicing, methods, iteration

Exercises

00 - Projects

Multi-concept exercises that combine skills from all previous sections.

#	Exercise	Description	Concepts
1	sorting_hat.py	Hogwarts Sorting Hat quiz	Variables, accumulators (+=), input, conditionals
2	FizzBuzz.py	The famous fizzbuzz test	Loops, Conditionals, Modulo operator (%), Logical ordering (checking 15 before 3 or 5)
3	terminal_adventure.py	Course checkpoint project inspired by Borges	Loops, conditionals, randomness, and user input for branching narrative paths with controlled flow and state

01 - Variables and Math

Covers variable assignment, arithmetic operators, exponents, user input, and type conversion.

#	Exercise	Description	Concepts
1	temperature.py	Fahrenheit to Celsius conversion	Variables, arithmetic operators
2	bmi.py	Body Mass Index calculation	Exponents (**)
3	hypotenuse.py	Pythagorean theorem calculator	input(), int(), square roots
4	currency.py	Multi-currency to USD converter	Multiple inputs, type conversion
5	report_card.py	What are the data types of variables?	Learning about type()
6	f_string_name.py	Print your name including variables	Introducing f' strings

02 - Conditionals

Covers if, elif, else statements, relational operators, and logical operators (and, or).

#	Exercise	Description	Concepts
1	grades.py	Pass/fail grade checker	if/else
2	ph_levels.py	pH scale classifier	elif, relational operators (<, >)
3	highschool_usa.py	Grade-to-classification mapping	Multiple elif, equality (==)
4	restaurant_reviews.py	Star rating classifier	float input, range comparisons
5	the_cyclone.py	Roller coaster eligibility check	Logical and operator
6	seasons_of_the_year.py	Month-to-season mapper	Logical or operator
7	planet_weights.py	Weight on different planets	Extended elif chains, float math

03 - Loops

Covers while loops, loop conditions, counters, and loop termination.

#	Exercise	Description	Concepts
1	bank_pin.py	PIN validation with retry	while loop, input validation
2	guess_the_number.py	Number guessing game	while with counter, compound conditions (and)
3	detention.py	Detention writing lines exercise	range() function testing with a for loop
4	99_bottles.py	Writing all 99 bottles lyrics with 5 lines of code	range() functions but with reversed and with steps, f-strings and interpolation (and)
5	snake_eyes.py	This simulates rolling two six-sided dice until both dice show 1	random library import, while loop, and randint() function

04 - Modules

Covers importing Python modules and using the random library.

#	Exercise	Description	Concepts
1	themagic8ball.py	Magic 8-Ball simulator	import random, randint()
2	snapple_random.py	Random Snapple bottle cap facts	random module, multi-branch selection

05 - Lists

Covers list creation, indexing, negative indexing, slicing, built-in functions (min(), max()), list methods (.append(), .remove(), .pop()), and iterating over lists with for loops.

#	Exercise	Description	Concepts
1	todo_list.py	To-do list with indexing and slicing	List syntax, indexing, negative indexing, slicing
2	inventory.py	LEGO parts inventory analysis	min(), max() built-in functions
3	reading_list.py	Managing a reading list	.append(), .remove(), .pop() methods
4	roadrip_karaoke.py	Road trip playlist printer	for loop, range(), len(), list iteration
5	academy_awards.py	Adding things to a list using a list method	.insert() list method
6	lucky_numbers.py	Adding random integers to lists	.append() list method, for loop, random.randint()
7	split_the_bill.py	Getting the sum of list items and then dividing it	for loop
8	DNA.py	Searching a list to see if it includes an item or not	for loop, if/else statement

Skills Demonstrated

• Data Types: int, float, str, list
• Operators: Arithmetic (+, -, *, /, **), relational (>, <, >=, ==), logical (and, or), modulo (%)
• User Input: input() with type conversion (int(), float())
• Control Flow: if/elif/else conditional branching
• Iteration: while loops with counters, for loops with range() and len()
• Lists: Indexing, negative indexing, slicing, .append(), .remove(), .pop(), min(), max()
• Modules: import random, random.randint()
• Patterns: Accumulator pattern, input validation, multi-branch selection

Running the Exercises

Each file is a standalone Python script:

python3 01_variables_and_math/01_temperature.py

Current Focus

• Python fundamentals and syntax
• Data structures and algorithms
• Problem-solving and computational thinking
• Building towards data science and bioinformatics applications

---

This is a living repository that grows with my learning. All code represents my current understanding and will evolve as I advance through the curriculum.