Python by Example

# Python by Example A practical, example-driven Python repository designed to help you learn Python from fundamentals to advanced concepts through clear, runnable code. Each file is self-contained and focuses on a single concept, making the repository suitable for structured learning, revision, or reference. --- ## Table of Contents - [Overview](#-overview) - [Topics Covered](#-topics-covered) - [Getting Started](#-getting-started) - [Prerequisites](#-prerequisites) - [File Structure](#-file-structure) - [Learning Path](#-learning-path) --- ## Overview This repository contains a complete Python tutorial designed for both beginners and experienced developers looking to refresh their knowledge. Each topic is organized in separate folders with practical, runnable examples. **Key Features:** - ✅ **Self-contained files** — Each file can be run independently - ✅ **Comprehensive comments** — Detailed explanations for every concept - ✅ **Practical examples** — Real-world use cases and patterns - ✅ **Progressive difficulty** — From basics to advanced topics --- ## Topics Covered ### 01. Basics | File | Topic | Description | |:-----|:------|:------------| | [`01_print.py`](./01_basics/01_print.py) | Print Function | Output, formatting, f-strings, escape characters | | [`02_comments.py`](./01_basics/02_comments.py) | Comments | Single-line, multi-line, docstrings, best practices | | [`03_variables.py`](./01_basics/03_variables.py) | Variables | Assignment, naming conventions, multiple assignment | | [`04_data_types.py`](./01_basics/04_data_types.py) | Data Types | Numbers, strings, booleans, type conversion | ### 02. Control Flow | File | Topic | Description | |:-----|:------|:------------| | [`01_if_else.py`](./02_control_flow/01_if_else.py) | If/Else | Conditionals, comparison operators, logical operators | | [`02_elif.py`](./02_control_flow/02_elif.py) | Elif | Multiple conditions, grading systems, ranges | | [`03_match_case.py`](./02_control_flow/03_match_case.py) | Match/Case | Pattern matching (Python 3.10+), guards, unpacking | ### 03. Loops | File | Topic | Description | |:-----|:------|:------------| | [`01_for_loop.py`](./03_loops/01_for_loop.py) | For Loops | Iteration, range(), enumerate(), zip() | | [`02_while_loop.py`](./03_loops/02_while_loop.py) | While Loops | Counters, sentinels, infinite loops | | [`03_break_continue.py`](./03_loops/03_break_continue.py) | Loop Control | break, continue, pass, for-else | ### 04. Data Structures | File | Topic | Description | |:-----|:------|:------------| | [`01_lists.py`](./04_data_structures/01_lists.py) | Lists | Indexing, slicing, methods, comprehensions | | [`02_tuples.py`](./04_data_structures/02_tuples.py) | Tuples | Immutability, unpacking, named tuples | | [`03_sets.py`](./04_data_structures/03_sets.py) | Sets | Operations, frozen sets, practical uses | | [`04_dictionaries.py`](./04_data_structures/04_dictionaries.py) | Dictionaries | Methods, nesting, comprehensions | ### 05. Functions | File | Topic | Description | |:-----|:------|:------------| | [`01_function_basics.py`](./05_functions/01_function_basics.py) | Function Basics | Defining functions, scope, docstrings | | [`02_arguments.py`](./05_functions/02_arguments.py) | Arguments | Positional, keyword, *args, **kwargs, type hints | | [`03_return_values.py`](./05_functions/03_return_values.py) | Return Values | Multiple returns, early returns, generators | | [`04_lambda_functions.py`](./05_functions/04_lambda_functions.py) | Lambda | Anonymous functions, map, filter, reduce | ### 06. Modules & Packages | File | Topic | Description | |:-----|:------|:------------| | [`01_imports.py`](./06_modules_packages/01_imports.py) | Imports | Import patterns, standard library, organization | | [`02_custom_modules.py`](./06_modules_packages/02_custom_modules.py) | Custom Modules | Creating modules, packages, `__init__.py` | ### 07. Error Handling | File | Topic | Description | |:-----|:------|:------------| | [`01_try_except.py`](./07_error_handling/01_try_except.py) | Try/Except | Exception handling, else, finally | | [`02_custom_exceptions.py`](./07_error_handling/02_custom_exceptions.py) | Custom Exceptions | Creating exceptions, hierarchy, best practices | ### 08. Object-Oriented Programming | File | Topic | Description | |:-----|:------|:------------| | [`01_classes_objects.py`](./08_oop/01_classes_objects.py) | Classes & Objects | Attributes, methods, self | | [`02_init_methods.py`](./08_oop/02_init_methods.py) | Init & Methods | Constructors, properties, classmethods | | [`03_inheritance.py`](./08_oop/03_inheritance.py) | Inheritance | Single/multiple inheritance, super(), MRO | | [`04_polymorphism.py`](./08_oop/04_polymorphism.py) | Polymorphism | Duck typing, operator overloading, protocols | ### 09. Advanced Python | File | Topic | Description | |:-----|:------|:------------| | [`01_list_comprehensions.py`](./09_advanced_python/01_list_comprehensions.py) | Comprehensions | List, dict, set comprehensions | | [`02_generators.py`](./09_advanced_python/02_generators.py) | Generators | Yield, iterators, memory efficiency | | [`03_decorators.py`](./09_advanced_python/03_decorators.py) | Decorators | Simple/parameterized decorators, functools | | [`04_context_managers.py`](./09_advanced_python/04_context_managers.py) | Context Managers | with statement, `__enter__`/`__exit__`, contextlib | ### 10. Best Practices | File | Topic | Description | |:-----|:------|:------------| | [`01_pep8.py`](./10_best_practices/01_pep8.py) | PEP 8 | Python style guide, naming, formatting | | [`02_type_hinting.py`](./10_best_practices/02_type_hinting.py) | Type Hinting | Type annotations, typing module, generics | | [`03_virtual_envs.py`](./10_best_practices/03_virtual_envs.py) | Virtual Environments | venv, pip, requirements.txt | --- ## Getting Started 1. **Clone the repository** ```bash git clone https://github.com/blshaer/python_review.git cd python_review ``` 2. **Start from basics** ```bash cd 01_basics python 01_print.py ``` 3. **Read the comments** — Each section is thoroughly explained 4. **Experiment** — Modify the code and observe the results --- ## Prerequisites | Requirement | Version | Notes | |:------------|:--------|:------| | Python | 3.10+ | Recommended (for match/case support) | | Python | 3.8+ | Minimum (for most features) | ```bash # Check your Python version python --version ``` --- ## File Structure Each Python file follows a consistent structure: ```python """ ================================================================================ File: filename.py Topic: Topic Name ================================================================================ Description of what the file covers... Key Concepts: - Concept 1 - Concept 2 - ... ================================================================================ """ # ----------------------------------------------------------------------------- # Section 1: Basic Example # ----------------------------------------------------------------------------- # ... code with inline comments ... # ----------------------------------------------------------------------------- # Section 2: Advanced Example # ----------------------------------------------------------------------------- # ... more code ... ``` --- ## Learning Path
🌱 Beginner 📈 Intermediate 🚀 Advanced 💼 Professional
1. [Basics](./01_basics/) 2. [Control Flow](./02_control_flow/) 3. [Loops](./03_loops/) 4. [Data Structures](./04_data_structures/) 5. [Functions](./05_functions/) 6. [Modules](./06_modules_packages/) 7. [Error Handling](./07_error_handling/) 8. [OOP](./08_oop/) 9. [Advanced Python](./09_advanced_python/) 10. [Best Practices](./10_best_practices/)
``` Recommended Flow: Beginner → 01_basics → 02_control_flow → 03_loops Intermediate → 04_data_structures → 05_functions → 06_modules Advanced → 07_error_handling → 08_oop → 09_advanced Professional → 10_best_practices ``` --- ## Progress Tracker Use this checklist to track your learning progress: - [ ] **01. Basics** — Print, Comments, Variables, Data Types - [ ] **02. Control Flow** — If/Else, Elif, Match/Case - [ ] **03. Loops** — For, While, Break/Continue - [ ] **04. Data Structures** — Lists, Tuples, Sets, Dictionaries - [ ] **05. Functions** — Basics, Arguments, Returns, Lambda - [ ] **06. Modules & Packages** — Imports, Custom Modules - [ ] **07. Error Handling** — Try/Except, Custom Exceptions - [ ] **08. OOP** — Classes, Init, Inheritance, Polymorphism - [ ] **09. Advanced Python** — Comprehensions, Generators, Decorators - [ ] **10. Best Practices** — PEP8, Type Hints, Virtual Environments ---

Happy Learning!

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