🐍 100 Days of Python — Code With Harry

Welcome to my Python learning repository! This project tracks my daily progress as I follow along with the "100 Days of Code" course by Code With Harry. It contains my hand-written scripts, exercises, and mini-projects.

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📂 Pushed Files Directory & Descriptions

Here is the topic index for the batch of files pushed to this repository, mapped directly to the concepts taught in the course:

Day	File Name	Course Topic / Description	Core Concepts Covered
03	day3.py	Modules and Pip	Internal vs External Modules, REPL
04	day4.py	First Python Program	Basic syntax and print() function usage
05	day5.py	Comments & Escape Sequences	\n, print() parameters (sep, end)
07	day7.py	Calculator Exercise	Arithmetic operators and typecasting practice
13	day13.py	String Methods	upper(), strip(), replace(), count()
15	day15.py	Exercise 2: Good Morning Sir	Using the time module with conditional checks
16	day16.py	Match Case Statements	Python's version of Switch-Case
17	day17.py	For Loops	Iterating over sequences, step arguments in range()
18	day18.py	While Loops	Conditional loops, decrementing loops, infinite loops
20	day20.py	Functions	Defining functions with def, pass-by-reference basics
22	day22.py	Introduction to Lists	Indexing, slicing, negative indexing, list comprehension
24	day24.py	Tuples	Immutable sequences, tuple operations
27	day27.py	Exercise 3: Kaun Banega Crorepati	Creating a text-based KBC game with lists/tuples
28	day28.py	f-Strings	String formatting using the modern f"{variable}" syntax
31	day31.py	Python Sets	Unordered collection of unique items, set properties
32	day32.py	Set Methods	union(), intersection(), difference(), update()
33	day33.py	Python Dictionaries	Key-Value pairs, accessing and altering values
36	day36.py	Exception Handling	try, except blocks to handle runtime errors
38	day38.py	Raising Custom Errors	Using the raise keyword for input validation
40	day40.py	Exercise 4: Secret Code Language	Encoding and decoding text strings using random letters
46	day46.py	os Module Introduction	Automating directory creation, file handling via CLI
49	day49.py	File I/O Basics	open(), read(), write(), and handling modes (r, w, a)
52	day52.py	Lambda Functions	Creating anonymous, single-line inline functions
53	day53.py	Map, Filter, and Reduce	Functional programming paradigms over iterables
58	day58.py	Constructors in OOP	Understanding Object-Oriented Programming and __init__()
60	day60.py	Getters and Setters	Encapsulation using the @property decorator
61	day61.py	Inheritance	Reusing classes, single inheritance structures
62	day62.py	Access Modifiers	Public, Private (__), and Protected (_) variables
63	day63.py	Exercise 6: Library Management System	Class-based system tracking books and counts
77	day77.py	Operator Overloading	Customizing standard math operators using dunder methods
84	day84.py	Time Module Detailed	Tracking program efficiency via time.time() and time.sleep()
86	day86.py	Walrus Operator	Assignment expression syntax via :=
87	day87.py	Shutil Module	Advanced file operations like copying, moving, and archiving

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🚀 Execution

Run any daily script using the standard interpreter terminal call:

python day85.py "URL_HERE" output.jpg