code: def get_xparl_python():
      """Users can specify the executable python of xparl command
      by exporting XPARL_PYTHON environment variable
  
      Examples:
      ```bash
      export XPARL_PYTHON='/opt/compiler/gcc-10/lib/ld-linux-x86-64.so.2 --library-path /opt/compiler/gcc-10/lib:~/miniconda3/envs/py36/lib: ~/miniconda3/envs/py36/bin/python'
      xparl start --port 8010
      ```
  
      Returns:
          xparl_python (list): executable python of xparl command
      """
      xparl_python = sys.executable
      env_name = "XPARL_PYTHON"
      if env_name in os.environ and os.environ[env_name]:
          assert isinstance(os.environ[env_name], str)
          xparl_python = os.environ[env_name]
      return xparl_python.split()
  
file_path: PARL/parl/remote/utils.py
imports: import cloudpickle
  import sys
  import inspect
  from contextlib import contextmanager
  import os
  import pkg_resources
  from parl.utils import logger
label_desc: Use image node_id 4 for calling a global function with example usage: get_xparl_python() and returns: xparl_python