def check_pytorch_version()

in scripts/launcher_single.py [0:0]

• 18 lines of code
• 4 McCabe index (conditional complexity)

def check_pytorch_version() -> Optional[str]:
    """
    Check and return the installed PyTorch version.

    This function runs a Python command to import torch and print its version.

    Returns:
        Optional[str]: The PyTorch version as a string, or None if an error occurred.

    Raises:
        subprocess.CalledProcessError: If the subprocess command fails.
    """
    try:
        # Run the command to get the PyTorch version
        result = sb.run(
            ["python", "-c", "import torch; print(torch.__version__)"],
            capture_output=True,
            text=True,
            check=True,
        )

        # Extract and strip the version string
        version = result.stdout.strip()

        print(f"Installed PyTorch version: {version}")
        return version

    except sb.CalledProcessError as e:
        print(f"Error occurred while checking PyTorch version: {e}")
        print(f"Error output: {e.stderr}")
        return None
    except Exception as e:
        print(f"Unexpected error occurred: {e}")
        return None