code: def load(directory_name, module_name):
      
      directory_name = os.path.expanduser(directory_name)
      if os.path.isdir(directory_name) and directory_name not in sys.path:
          sys.path.append(directory_name)
  
      try:
          return importlib.import_module(module_name)
      except ImportError:
          pass
docs: Try to load and return a module
  
      Will add DIRECTORY_NAME to sys.path and tries to import MODULE_NAME.
  
      For example:
      load("~/.yaz", "yaz_extension")