daytona-python-shell

daytona-python-shell

Interactive shell over repos in a Mesa org running inside a Daytona sandbox, written in Python.

Spins up a Daytona sandbox, installs the Mesa CLI, mounts your org's repos via FUSE, and drops you into a minimal shell. Commands execute inside the sandbox against the mounted filesystem.

Quick start

# Install uv if you don't have it
curl -LsSf https://astral.sh/uv/install.sh | sh

# Create a .env in this directory (gitignored)
cp .env.example .env

# Now populate your .env file with the required API keys

# Run
uv run main.py

Creating Daytona sandbox...
Installing Mesa...
Configuring FUSE...
Mounting Mesa...
Connected to your-org. Type 'exit' or Ctrl+D to quit.

$ ls
repo-one  repo-two  repo-three
$ cd repo-one
$ ls
README.md  src/  package.json
$ cat README.md
# My Project
...
$ exit
Cleaning up sandbox...
Bye!

How it works

1. Creates a Daytona sandbox (default image)
2. Installs the Mesa CLI inside the sandbox
3. Configures FUSE (user_allow_other) so Mesa can serve the mount
4. Runs mesa mount -d -y with your org and API key to start the FUSE daemon
5. Drops you into a REPL where commands run inside the sandbox via sandbox.process.exec()

The REPL (repl.py) tracks your working directory and handles cd, ~ expansion, and relative paths.

Files

File	Description
main.py	Sandbox setup, Mesa installation and mount
repl.py	Tiny REPL with cd and tilde expansion
pyproject.toml	Dependencies: daytona, mesa-sdk, python-dotenv

Environment variables

Variable	Description
MESA_ORG	Your Mesa organization slug
MESA_API_KEY	Mesa API key (get one here)
DAYTONA_API_KEY	Daytona API key (get one here)

Requirements

• Python >= 3.11
• uv (recommended) or pip