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"
