text: import os
  
  result = os.getenv("OS", '1')
  
  from functools import partial
  
  
  def start():
      pass
  
  
  partial(start)
  
  import importlib
  
  pickle = importlib.import_module(name='pickle')
  value = pickle.dumps(dict(name="test", age=10))
  print(value)
  
  print(os.fspath("/Volumes"))
  print(os.getppid())
  