Function main

Solutions/8_2/pcost.py:12–16

(args)

    return portfolio.total_cost

def main(args):
    if len(args) != 2:
        raise SystemExit('Usage: %s portfoliofile' % args[0])
    filename = args[1]
    print('Total cost:', portfolio_cost(filename))

if __name__ == '__main__':
    import sys