text: import os
  import sys
  
  proj_dir = os.path.dirname(os.path.abspath(__file__))
  
  # module path
  _path_installed = False
  
  
  def init_path():
      global _path_installed
      if _path_installed:
          return
      sys.path.append(proj_dir)
      # print(sys.path)
      _path_installed = True
  
  
  init_path()
  