A minimal, best-practice-ish skeleton (Flask)
# 0) clone this repo then:
python3 -m venv venv
source venv/bin/activate # on Windows: venv\Scripts\activate
pip install -r requirements.txt
# Optional: copy env sample
cp .env.example .env
# Run
python run.py
# then visit http://localhost:5000
# Tests
python -m pytest -q