python subprocess call system command error

[xunwumizhi]

    command = [        
        'echo',
        'hello world',
    ]
    try:
        result = subprocess.run(
            command,
            stdout=subprocess.PIPE,
            stderr=subprocess.PIPE,
            check=True,
            text=True
        )
        msg = f"code: {result.returncode}, stdout:{result.stdout}, stderr:{result.stderr}"
    except Exception as e:
        msg = f"exception: {e}"
    print(msg)
    return {
        "result": msg,
    }

got error:

"exception: Command '['echo', 'hello world']' died with <Signals.SIGSYS: 31>."

i had add echo(/usr/bin/echo) command to python lib path (/var/sandbox/python-sandbox/usr/bin/echo)

python_lib_path:
  # external libraries
  - /usr/bin/ffmpeg # will add /usr/bin path
  - /usr/share/ffmpeg