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
freeCodeCamp - Python Certification	Quick, effective Python fundamentals	In Progress
Coursera	Academic approach to computer science and Python	Coming Soon

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.

01_variables_and_math/    Fundamentals: variables, arithmetic, type conversion
02_conditionals/          Control flow: if/elif/else, logical operators
03_loops/                 Iteration: while loops, counters, loop control
04_modules/               Importing and using Python modules (random)
05_projects/              Multi-concept exercises combining all skills above

Exercises

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

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 - 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)

Skills Demonstrated

• Data Types: int, float, str
• Operators: Arithmetic (+, -, *, /, **), relational (>, <, >=, ==), logical (and, or)
• User Input: input() with type conversion (int(), float())
• Control Flow: if/elif/else conditional branching
• Iteration: while loops with counters and compound exit conditions
• 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.