🐍 Python Projects

A curated collection of personal Python side projects, ranging from security & cryptography to computer vision, competitive programming, and fun mini-applications.

📂 Repository Structure

Submodule Projects (Linked Repos)

Folder	Description	Link
Computer_Vision_Practice	OpenCV toolkit covering face detection, recognition, motion detection, and edge detection.	Repo
Incryption_Practice	Cryptography & CTF practice — RSA, AES-256 GCM, Argon2id hashing, and encoding challenges.	Repo
POSN_Practice	20 Python competitive programming solutions for POSN (Promotion of Academic Olympiad and Development of Science Education).	Repo

Standalone Projects (Files Only)

Folder	Description
POS_System	Full-featured Tkinter Point-of-Sale GUI with cart, 7% VAT, transaction history, JSON persistence, and CSV export.
New_Year_Timer	New Year's Eve countdown timer in both GUI (Tkinter) and terminal versions, set for GMT+7 Bangkok time.
Christmas_tree	Animated ASCII Christmas tree with randomized ANSI color ornaments in the terminal.
Card_Game	Terminal-based multiplayer card game for up to 6 players with deck shuffling and turn-based play.

🛠️ Tech Stack

• Language: Python 3.x
• GUI: Tkinter
• Computer Vision: OpenCV (opencv-contrib-python)
• Cryptography: cryptography, argon2-cffi
• Data: JSON, CSV
• Standard Library: random, datetime, os, sys, time

🚀 Getting Started

# Clone with submodules
git clone --recurse-submodules https://github.com/Ray0737/Python_Projects.git

# Or if already cloned, initialize submodules
git submodule update --init --recursive

⚠️ Deployment Notes

• POS_System contains test credentials (Test_user / 0123). Remove before any public deployment.
• New_Year_Timer must be launched before 23:00 on December 31st for the countdown to function correctly.
• Computer_Vision_Practice requires a webcam for live detection scripts. Verify all image paths (pic\...) when deploying.
• Incryption_Practice: Loss of private_key.pem or the Master Password means permanent data loss — by design.