def test_plural() -> None: assert plural(0, "page") == "pages" assert plural(0.0, "page") == "pages" assert plural(1, "page") == "page" assert plural(1.0, "page") == "page" assert plural(2, "page") == "pages" assert plural(2.0, "page") == "pages" assert plural(-1, "page") == "page" assert plural(-1.0, "page") == "page" assert plural(-2, "page") == "pages" assert plural(-2.0, "page") == "pages" assert plural(0.5, "page") == "pages" assert plural(1.5, "page") == "pages" assert plural(-0.5, "page") == "pages" assert plural(-1.5, "page") == "pages" assert plural(0, "ox", "oxen") == "oxen" assert plural(0.0, "ox", "oxen") == "oxen" assert plural(1, "ox", "oxen") == "ox" assert plural(1.0, "ox", "oxen") == "ox" assert plural(2, "ox", "oxen") == "oxen" assert plural(2.0, "ox", "oxen") == "oxen" assert plural(-1, "ox", "oxen") == "ox" assert plural(-1.0, "ox", "oxen") == "ox" assert plural(-2, "ox", "oxen") == "oxen" assert plural(-2.0, "ox", "oxen") == "oxen" assert plural(0.5, "ox", "oxen") == "oxen" assert plural(1.5, "ox", "oxen") == "oxen" assert plural(-0.5, "ox", "oxen") == "oxen" assert plural(-1.5, "ox", "oxen") == "oxen"
def start_list_markets(args: Dict[str, Any], pairs_only: bool = False) -> None: """ Print pairs/markets on the exchange :param args: Cli args from Arguments() :param pairs_only: if True print only pairs, otherwise print all instruments (markets) :return: None """ config = setup_utils_configuration(args, RunMode.UTIL_EXCHANGE) # Init exchange exchange = ExchangeResolver(config['exchange']['name'], config, validate=False).exchange # By default only active pairs/markets are to be shown active_only = not args.get('list_pairs_all', False) base_currencies = args.get('base_currencies', []) quote_currencies = args.get('quote_currencies', []) try: pairs = exchange.get_markets(base_currencies=base_currencies, quote_currencies=quote_currencies, pairs_only=pairs_only, active_only=active_only) # Sort the pairs/markets by symbol pairs = OrderedDict(sorted(pairs.items())) except Exception as e: raise OperationalException(f"Cannot get markets. Reason: {e}") from e else: summary_str = ( (f"Exchange {exchange.name} has {len(pairs)} ") + ("active " if active_only else "") + (plural(len(pairs), "pair" if pairs_only else "market")) + (f" with {', '.join(base_currencies)} as base " f"{plural(len(base_currencies), 'currency', 'currencies')}" if base_currencies else "") + (" and" if base_currencies and quote_currencies else "") + (f" with {', '.join(quote_currencies)} as quote " f"{plural(len(quote_currencies), 'currency', 'currencies')}" if quote_currencies else "")) headers = [ "Id", "Symbol", "Base", "Quote", "Active", *(['Is pair'] if not pairs_only else []) ] tabular_data = [] for _, v in pairs.items(): tabular_data.append({ 'Id': v['id'], 'Symbol': v['symbol'], 'Base': v['base'], 'Quote': v['quote'], 'Active': market_is_active(v), **({ 'Is pair': symbol_is_pair(v['symbol']) } if not pairs_only else {}) }) if (args.get('print_one_column', False) or args.get('list_pairs_print_json', False) or args.get('print_csv', False)): # Print summary string in the log in case of machine-readable # regular formats. logger.info(f"{summary_str}.") else: # Print empty string separating leading logs and output in case of # human-readable formats. print() if len(pairs): if args.get('print_list', False): # print data as a list, with human-readable summary print(f"{summary_str}: {', '.join(pairs.keys())}.") elif args.get('print_one_column', False): print('\n'.join(pairs.keys())) elif args.get('list_pairs_print_json', False): print(rapidjson.dumps(list(pairs.keys()), default=str)) elif args.get('print_csv', False): writer = csv.DictWriter(sys.stdout, fieldnames=headers) writer.writeheader() writer.writerows(tabular_data) else: # print data as a table, with the human-readable summary print(f"{summary_str}:") print(tabulate(tabular_data, headers='keys', tablefmt='pipe')) elif not (args.get('print_one_column', False) or args.get('list_pairs_print_json', False) or args.get('print_csv', False)): print(f"{summary_str}.")