code: def check_satpy(readers=None, writers=None, extras=None):
      
      from satpy.readers import configs_for_reader
      from satpy.writers import configs_for_writer
  
      print('Readers')
      print('=======')
      for reader, res in sorted(check_yaml_configs(configs_for_reader(reader=readers), 'reader').items()):
          print(reader + ': ', res)
      print()
  
      print('Writers')
      print('=======')
      for writer, res in sorted(check_yaml_configs(configs_for_writer(writer=writers), 'writer').items()):
          print(writer + ': ', res)
      print()
  
      print('Extras')
      print('======')
      module_names = extras if extras is not None else ('cartopy', 'geoviews')
      for module_name, res in sorted(_check_import(module_names).items()):
          print(module_name + ': ', res)
      print()
docs: Check the satpy readers and writers for correct installation.
  
      Args:
          readers (list or None): Limit readers checked to those specified
          writers (list or None): Limit writers checked to those specified
          extras (list or None): Limit extras checked to those specified
  
      Returns: bool
          True if all specified features were successfully loaded.