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Python Learning Lab

This repository is a hands-on collection of Python practice projects, mini apps, and data exercises. It starts with core Python basics and grows into web apps, authentication, OCR, data workflows, and storage internals.

Repository Map

Folder Focus Docs / Entry Point
01_python_basics Introductory Python scripts covering syntax, file handling, SQLite, web scraping, and a small thesaurus app README
02_stateless_otp Stateless OTP service with FastAPI, delivery backends, SDKs, and tests README
03_calorie_calulator Flask calorie calculator app with templates, login flow, and dashboard views README
04_ocr_extract Flask OCR uploader that uses Tesseract to extract text from images README
05_problem_solving Algorithm and Python interview-style practice, including two pointers, decorators, and concurrency examples Start with 1.py or basics.py
06_data_science Pandas and NumPy practice, data cleaning, ETL examples, joins, chunked processing, and reporting workflows Start with basics.py or 5.py
07_database_storage Custom append-only key-value storage engine with indexing, recovery, and compaction README
08_store_image_db Flask + SQLite demo for storing and serving small images as BLOBs README

Getting Started

  1. Create and activate a virtual environment.
python3 -m venv .venv
source .venv/bin/activate
  1. Choose a module and install its dependencies if it has a requirements.txt file.
pip install -r 04_ocr_extract/requirements.txt
  1. Run the relevant script or app from the repository root.
python3 01_python_basics/1.Basics/main.py
python3 04_ocr_extract/run.py
python3 07_database_storage/storage_engine.py

Notes

  • Dependencies are managed per project, not at the repository root.
  • 04_ocr_extract requires the tesseract CLI to be installed on your system.
  • Some folders are app-style projects with their own READMEs, while 05_problem_solving and 06_data_science are script collections you can run file by file.
  • Folder names are documented exactly as they exist in the repository, including 03_calorie_calulator.

License

This project is licensed under the MIT License. See LICENSE for details.