code: def __boot():
      import sys
      import os
  
      PYTHONPATH = os.environ.get("PYTHONPATH")
      if PYTHONPATH is None or (
          sys.platform == "win32" and not PYTHONPATH
      ):
          PYTHONPATH = []
      else:
          PYTHONPATH = PYTHONPATH.split(os.pathsep)
  
      pic = getattr(sys, "path_importer_cache", {})
      stdpath = sys.path[len(PYTHONPATH) :]
      mydir = os.path.dirname(__file__)
  
      for item in stdpath:
          if item == mydir or not item:
              continue  # skip if current dir. on Windows, or my own directory
          importer = pic.get(item)
          if importer is not None:
              loader = importer.find_module("site")
              if loader is not None:
                  # This should actually reload the current module
                  loader.load_module("site")
                  break
          else:
              try:
                  import imp  # Avoid import loop in Python 3
  
                  stream, path, descr = imp.find_module("site", [item])
              except ImportError:
                  continue
              if stream is None:
                  continue
              try:
                  # This should actually reload the current module
                  imp.load_module("site", stream, path, descr)
              finally:
                  stream.close()
              break
      else:
          raise ImportError("Couldn't find the real 'site' module")
  
      known_paths = dict(
          [(makepath(item)[1], 1) for item in sys.path]
      )  # 2.2 comp
  
      oldpos = getattr(
          sys, "__egginsert", 0
      )  # save old insertion position
      sys.__egginsert = 0  # and reset the current one
  
      for item in PYTHONPATH:
          addsitedir(item)
  
      sys.__egginsert += oldpos  # restore effective old position
  
      d, nd = makepath(stdpath[0])
      insert_at = None
      new_path = []
  
      for item in sys.path:
          p, np = makepath(item)
  
          if np == nd and insert_at is None:
              # We've hit the first 'system' path entry, so added entries go here
              insert_at = len(new_path)
  
          if np in known_paths or insert_at is None:
              new_path.append(item)
          else:
              # new path after the insert point, back-insert it
              new_path.insert(insert_at, item)
              insert_at += 1
  
      sys.path[:] = new_path
  
label_desc: Use image node_id 1 for calling a global function with example usage: __boot() without return types