uv

fastmcp.utilities.mcp_server_config.v1.environments.uv

Classes

UVEnvironment

Configuration for Python environment setup.

Methods:

build_command

build_command(self, command: list[str]) -> list[str]

Build complete uv run command with environment args and command to execute.

Args:

• command: Command to execute (e.g., [“fastmcp”, “run”, “server.py”])

Returns:

• Complete command ready for subprocess.run, including “uv” prefix if needed.
• If no environment configuration is set, returns the command unchanged.

prepare

prepare(self, output_dir: Path | None = None) -> None

Prepare the Python environment using uv.

Args:

• output_dir: Directory where the persistent uv project will be created. If None, creates a temporary directory for ephemeral use.