A Flask workspace that just runs.

• Zero local setup

  Python, pip and the dependencies live inside the container. Only Docker is required.

• Python 3.14 + extensions

  Pylance, Ruff, Black, pylint, pytest and debugpy are already installed.

• Debug ready

  Press F5 and the app starts on port 40000 with breakpoints enabled.

• Predictable time zone

  America/Sao_Paulo is set for reproducible dates in logs and reports.

• Concurrency examples

  The same download workload in sequential, threaded, httpx async and aiohttp async versions.

• Small, honest sample

  A minimal Flask app and a requirements file. No opinionated structure to undo before adding yours.

1. Click "Use this template" → "Create a new repository"
2. Clone your new repository and open the folder in VS Code
3. Accept "Reopen in Container" when prompted
4. Press F5 and open http://127.0.0.1:40000

Requirements: Docker running, VS Code and the Dev Containers extension. To use it without creating a repository: git clone https://github.com/thepaneb/base_flask.git.

.
├── .devcontainer/devcontainer.json   # Python 3.14 image, extensions, port 40000
├── .vscode/
│   ├── extensions.json               # recommends the Dev Containers extension
│   └── launch.json                   # "Flask Debugger" (debugpy)
├── app/
│   ├── __init__.py                   # Flask app and the sample route
│   ├── requirements.txt              # Flask + requests
│   ├── sync.py                       # sequential I/O
│   ├── thread.py                     # threaded I/O
│   ├── httpx.py                      # async I/O with httpx
│   └── aiohttp.py                    # async I/O with aiohttp
├── dev/dependencies.sh               # upgrades pip and installs requirements
└── base_flask.code-workspace

The launch profile uses --no-debugger --no-reload on purpose: Flask's own debugger and reloader conflict with debugpy breakpoints.

• Use this templateCreate a repository from the template
• Sourcegithub.com/thepaneb/base_flask
• base_robynThe same idea for a Robyn workspace