Function check_python_version_compatibility

marimo/_session/_venv.py:175–199

Check if venv Python version matches current Python. Binary dependencies (pyzmq, msgspec) aren't cross-version compatible, so the venv must use the same Python major.minor version. Args: venv_python: Path to the venv's Python interpreter. Returns: True if versions

(venv_python: str)

def check_python_version_compatibility(venv_python: str) -> bool:
    """Check if venv Python version matches current Python.

    Binary dependencies (pyzmq, msgspec) aren't cross-version compatible,
    so the venv must use the same Python major.minor version.

    Args:
        venv_python: Path to the venv's Python interpreter.

    Returns:
        True if versions match, False otherwise.
    """
    result = subprocess.run(
        [
            venv_python,
            "-c",
            "import sys; print(f'{sys.version_info.major}.{sys.version_info.minor}')",
        ],
        capture_output=True,
        text=True,
    )
    venv_version = result.stdout.strip()
    current_version = f"{sys.version_info.major}.{sys.version_info.minor}"

    return venv_version == current_version


def install_marimo_into_venv(venv_python: str) -> None: