def add_from_csv(csv_file, version=None, overwrite=False):
 diagnostic_messages = []
 for (module_name, new_metadata) in parse_assigned_metadata_initial(csv_file):
  filename = module_loader.find_plugin(module_name, mod_type='.py')
  if (filename is None):
   diagnostic_messages.append('Unable to find the module file for {}'.format(module_name))
   continue
  try:
   write_metadata(filename, new_metadata, version, overwrite)
  except ParseError as e:
   diagnostic_messages.append(e.args[0])
   continue
 if diagnostic_messages:
  pprint(diagnostic_messages)
 return 0

def add_from_csv ( csv_file , version = None , overwrite = False ) : diagnostic_messages = [ ] for ( module_name , new_metadata ) in parse_assigned_metadata_initial ( csv_file ) : filename = module_loader . find_plugin ( module_name , mod_type = '.py' ) if ( filename is None ) : diagnostic_messages . append ( 'Unable to find the module file for {}' . format ( module_name ) ) continue try : write_metadata ( filename , new_metadata , version , overwrite ) except ParseError as e : diagnostic_messages . append ( e . args [ 0 ] ) continue if diagnostic_messages : pprint ( diagnostic_messages ) return 0
implement the subcommand to add metadata from a csv file .