def portfolio(portfolio_id): """Message of /port_*id* command""" port = Portfolio(portfolio_id) if port.count_papers() > 0: message = 'Your papers\n' port.current_prices() for paper in port.papers: message += f'{paper}\n' \ f'{paper.change()} {paper.currency} ({paper.percent()}%) \n' \ f'{paper.market()}\n\n' return message else: return "No papers"