text: # -*- coding: utf-8 -*-
  
  # PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
  # https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
  
  from ccxt.async_support.base.exchange import Exchange
  import hashlib
  from ccxt.base.errors import ExchangeError
  from ccxt.base.errors import ArgumentsRequired
  from ccxt.base.errors import InvalidOrder
  
  
  class mercado (Exchange):
  
      def describe(self):
          return self.deep_extend(super(mercado, self).describe(), {
              'id': 'mercado',
              'name': 'Mercado Bitcoin',
              'countries': ['BR'],  # Brazil
              'rateLimit': 1000,
              'version': 'v3',
              'has': {
                  'CORS': True,
                  'createMarketOrder': True,
                  'fetchOrder': True,
                  'withdraw': True,
                  'fetchOHLCV': True,
                  'fetchOrders': True,
                  'fetchOpenOrders': True,
                  'fetchTicker': True,
                  'fetchTickers': False,
              },
              'timeframes': {
                  '5m': '5m',
                  '15m': '15m',
                  '30m': '30m',
                  '1h': '1h',
                  '6h': '6h',
                  '12h': '12h',
                  '1d': '1d',
                  '3d': '3d',
                  '1w': '1w',
                  '2w': '2w',
              },
              'urls': {
                  'logo': 'https://user-images.githubusercontent.com/1294454/27837060-e7c58714-60ea-11e7-9192-f05e86adb83f.jpg',
                  'api': {
                      'public': 'https://www.mercadobitcoin.net/api',
                      'private': 'https://www.mercadobitcoin.net/tapi',
                      'v4Public': 'https://www.mercadobitcoin.com.br/v4',
                  },
                  'www': 'https://www.mercadobitcoin.com.br',
                  'doc': [
                      'https://www.mercadobitcoin.com.br/api-doc',
                      'https://www.mercadobitcoin.com.br/trade-api',
                  ],
              },
              'api': {
                  'public': {
                      'get': [
                          '{coin}/orderbook/',  # last slash critical
                          '{coin}/ticker/',
                          '{coin}/trades/',
                          '{coin}/trades/{from}/',
                          '{coin}/trades/{from}/{to}',
                          '{coin}/day-summary/{year}/{month}/{day}/',
                      ],
                  },
                  'private': {
                      'post': [
                          'cancel_order',
                          'get_account_info',
                          'get_order',
                          'get_withdrawal',
                          'list_system_messages',
                          'list_orders',
                          'list_orderbook',
                          'place_buy_order',
                          'place_sell_order',
                          'place_market_buy_order',
                          'place_market_sell_order',
                          'withdraw_coin',
                      ],
                  },
                  'v4Public': {
                      'get': [
                          '{coin}/candle/',
                      ],
                  },
              },
              'markets': {
                  'BTC/BRL': {'id': 'BRLBTC', 'symbol': 'BTC/BRL', 'base': 'BTC', 'quote': 'BRL', 'precision': {'amount': 8, 'price': 5}, 'suffix': 'Bitcoin'},
                  'LTC/BRL': {'id': 'BRLLTC', 'symbol': 'LTC/BRL', 'base': 'LTC', 'quote': 'BRL', 'precision': {'amount': 8, 'price': 5}, 'suffix': 'Litecoin'},
                  'BCH/BRL': {'id': 'BRLBCH', 'symbol': 'BCH/BRL', 'base': 'BCH', 'quote': 'BRL', 'precision': {'amount': 8, 'price': 5}, 'suffix': 'BCash'},
                  'XRP/BRL': {'id': 'BRLXRP', 'symbol': 'XRP/BRL', 'base': 'XRP', 'quote': 'BRL', 'precision': {'amount': 8, 'price': 5}, 'suffix': 'Ripple'},
                  'ETH/BRL': {'id': 'BRLETH', 'symbol': 'ETH/BRL', 'base': 'ETH', 'quote': 'BRL', 'precision': {'amount': 8, 'price': 5}, 'suffix': 'Ethereum'},
              },
              'fees': {
                  'trading': {
                      'maker': 0.3 / 100,
                      'taker': 0.7 / 100,
                  },
              },
          })
  
      async def fetch_order_book(self, symbol, limit=None, params={}):
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'coin': market['base'],
          }
          response = await self.publicGetCoinOrderbook(self.extend(request, params))
          return self.parse_order_book(response)
  
      async def fetch_ticker(self, symbol, params={}):
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'coin': market['base'],
          }
          response = await self.publicGetCoinTicker(self.extend(request, params))
          ticker = self.safe_value(response, 'ticker', {})
          timestamp = self.safe_integer(ticker, 'date')
          if timestamp is not None:
              timestamp *= 1000
          last = self.safe_float(ticker, 'last')
          return {
              'symbol': symbol,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'high': self.safe_float(ticker, 'high'),
              'low': self.safe_float(ticker, 'low'),
              'bid': self.safe_float(ticker, 'buy'),
              'bidVolume': None,
              'ask': self.safe_float(ticker, 'sell'),
              'askVolume': None,
              'vwap': None,
              'open': None,
              'close': last,
              'last': last,
              'previousClose': None,
              'change': None,
              'percentage': None,
              'average': None,
              'baseVolume': self.safe_float(ticker, 'vol'),
              'quoteVolume': None,
              'info': ticker,
          }
  
      def parse_trade(self, trade, market=None):
          timestamp = self.safe_integer(trade, 'date')
          if timestamp is not None:
              timestamp *= 1000
          symbol = None
          if market is not None:
              symbol = market['symbol']
          id = self.safe_string(trade, 'tid')
          type = None
          side = self.safe_string(trade, 'type')
          price = self.safe_float(trade, 'price')
          amount = self.safe_float(trade, 'amount')
          cost = None
          if price is not None:
              if amount is not None:
                  cost = price * amount
          return {
              'id': id,
              'info': trade,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'symbol': symbol,
              'order': None,
              'type': type,
              'side': side,
              'takerOrMaker': None,
              'price': price,
              'amount': amount,
              'cost': cost,
              'fee': None,
          }
  
      async def fetch_trades(self, symbol, since=None, limit=None, params={}):
          await self.load_markets()
          market = self.market(symbol)
          method = 'publicGetCoinTrades'
          request = {
              'coin': market['base'],
          }
          if since is not None:
              method += 'From'
              request['from'] = int(since / 1000)
          to = self.safe_integer(params, 'to')
          if to is not None:
              method += 'To'
          response = await getattr(self, method)(self.extend(request, params))
          return self.parse_trades(response, market, since, limit)
  
      async def fetch_balance(self, params={}):
          await self.load_markets()
          response = await self.privatePostGetAccountInfo(params)
          data = self.safe_value(response, 'response_data', {})
          balances = self.safe_value(data, 'balance', {})
          result = {'info': response}
          currencyIds = list(balances.keys())
          for i in range(0, len(currencyIds)):
              currencyId = currencyIds[i]
              code = currencyId
              if currencyId in self.currencies_by_id:
                  code = self.currencies_by_id[currencyId]['code']
              else:
                  code = self.common_currency_code(currencyId.upper())
              # currencyId = self.currencyId(code)
              lowercase = currencyId.lower()
              if lowercase in balances:
                  balance = self.safe_value(balances, lowercase, {})
                  account = self.account()
                  account['free'] = float(balance, 'available')
                  account['total'] = self.safe_float(balance, 'total')
                  result[code] = account
          return self.parse_balance(result)
  
      async def create_order(self, symbol, type, side, amount, price=None, params={}):
          await self.load_markets()
          request = {
              'coin_pair': self.market_id(symbol),
          }
          method = self.capitalize(side) + 'Order'
          if type == 'limit':
              method = 'privatePostPlace' + method
              request['limit_price'] = self.price_to_precision(symbol, price)
              request['quantity'] = self.amount_to_precision(symbol, amount)
          else:
              method = 'privatePostPlaceMarket' + method
              if side == 'buy':
                  if price is None:
                      raise InvalidOrder(self.id + ' createOrder() requires the price argument with market buy orders to calculate total order cost(amount to spend), where cost = amount * price. Supply a price argument to createOrder() call if you want the cost to be calculated for you from price and amount')
                  request['cost'] = self.price_to_precision(symbol, amount * price)
              else:
                  request['quantity'] = self.amount_to_precision(symbol, amount)
          response = await getattr(self, method)(self.extend(request, params))
          # TODO: replace self with a call to parseOrder for unification
          return {
              'info': response,
              'id': str(response['response_data']['order']['order_id']),
          }
  
      async def cancel_order(self, id, symbol=None, params={}):
          if symbol is None:
              raise ArgumentsRequired(self.id + ' cancelOrder() requires a symbol argument')
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'coin_pair': market['id'],
              'order_id': id,
          }
          response = await self.privatePostCancelOrder(self.extend(request, params))
          #
          #     {
          #         response_data: {
          #             order: {
          #                 order_id: 2176769,
          #                 coin_pair: 'BRLBCH',
          #                 order_type: 2,
          #                 status: 3,
          #                 has_fills: False,
          #                 quantity: '0.10000000',
          #                 limit_price: '1996.15999',
          #                 executed_quantity: '0.00000000',
          #                 executed_price_avg: '0.00000',
          #                 fee: '0.00000000',
          #                 created_timestamp: '1536956488',
          #                 updated_timestamp: '1536956499',
          #                 operations: []
          #             }
          #         },
          #         status_code: 100,
          #         server_unix_timestamp: '1536956499'
          #     }
          #
          responseData = self.safe_value(response, 'response_data', {})
          order = self.safe_value(responseData, 'order', {})
          return self.parse_order(order, market)
  
      def parse_order_status(self, status):
          statuses = {
              '2': 'open',
              '3': 'canceled',
              '4': 'closed',
          }
          return self.safe_string(statuses, status, status)
  
      def parse_order(self, order, market=None):
          #
          #     {
          #         "order_id": 4,
          #         "coin_pair": "BRLBTC",
          #         "order_type": 1,
          #         "status": 2,
          #         "has_fills": True,
          #         "quantity": "2.00000000",
          #         "limit_price": "900.00000",
          #         "executed_quantity": "1.00000000",
          #         "executed_price_avg": "900.00000",
          #         "fee": "0.00300000",
          #         "created_timestamp": "1453838494",
          #         "updated_timestamp": "1453838494",
          #         "operations": [
          #             {
          #                 "operation_id": 1,
          #                 "quantity": "1.00000000",
          #                 "price": "900.00000",
          #                 "fee_rate": "0.30",
          #                 "executed_timestamp": "1453838494",
          #             },
          #         ],
          #     }
          #
          id = self.safe_string(order, 'order_id')
          side = None
          if 'order_type' in order:
              side = 'buy' if (order['order_type'] == 1) else 'sell'
          status = self.parse_order_status(self.safe_string(order, 'status'))
          symbol = None
          if market is None:
              marketId = self.safe_string(order, 'coin_pair')
              market = self.safe_value(self.markets_by_id, marketId)
          if market is not None:
              symbol = market['symbol']
          timestamp = self.safe_integer(order, 'created_timestamp')
          if timestamp is not None:
              timestamp = timestamp * 1000
          fee = {
              'cost': self.safe_float(order, 'fee'),
              'currency': market['quote'],
          }
          price = self.safe_float(order, 'limit_price')
          # price = self.safe_float(order, 'executed_price_avg', price)
          average = self.safe_float(order, 'executed_price_avg')
          amount = self.safe_float(order, 'quantity')
          filled = self.safe_float(order, 'executed_quantity')
          remaining = amount - filled
          cost = filled * average
          lastTradeTimestamp = self.safe_integer(order, 'updated_timestamp')
          if lastTradeTimestamp is not None:
              lastTradeTimestamp = lastTradeTimestamp * 1000
          return {
              'info': order,
              'id': id,
              'timestamp': timestamp,
              'datetime': self.iso8601(timestamp),
              'lastTradeTimestamp': lastTradeTimestamp,
              'symbol': symbol,
              'type': 'limit',
              'side': side,
              'price': price,
              'cost': cost,
              'average': average,
              'amount': amount,
              'filled': filled,
              'remaining': remaining,
              'status': status,
              'fee': fee,
              'trades': None,  # todo parse trades(operations)
          }
  
      async def fetch_order(self, id, symbol=None, params={}):
          if symbol is None:
              raise ArgumentsRequired(self.id + ' fetchOrder() requires a symbol argument')
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'coin_pair': market['id'],
              'order_id': int(id),
          }
          response = await self.privatePostGetOrder(self.extend(request, params))
          responseData = self.safe_value(response, 'response_data', {})
          order = self.safe_value(responseData, 'order')
          return self.parse_order(order, market)
  
      async def withdraw(self, code, amount, address, tag=None, params={}):
          self.check_address(address)
          await self.load_markets()
          currency = self.currency(code)
          request = {
              'coin': currency['id'],
              'quantity': '{:.10f}'.format(amount),
              'address': address,
          }
          if code == 'BRL':
              account_ref = ('account_ref' in list(params.keys()))
              if not account_ref:
                  raise ExchangeError(self.id + ' requires account_ref parameter to withdraw ' + code)
          elif code != 'LTC':
              tx_fee = ('tx_fee' in list(params.keys()))
              if not tx_fee:
                  raise ExchangeError(self.id + ' requires tx_fee parameter to withdraw ' + code)
              if code == 'XRP':
                  if tag is None:
                      if not('destination_tag' in list(params.keys())):
                          raise ExchangeError(self.id + ' requires a tag argument or destination_tag parameter to withdraw ' + code)
                  else:
                      request['destination_tag'] = tag
          response = await self.privatePostWithdrawCoin(self.extend(request, params))
          return {
              'info': response,
              'id': response['response_data']['withdrawal']['id'],
          }
  
      def parse_ohlcv(self, ohlcv, market=None, timeframe='1m', since=None, limit=None):
          timestamp = self.safe_integer(ohlcv, 'timestamp')
          if timestamp is not None:
              timestamp = timestamp * 1000
          return [
              timestamp,
              self.safe_float(ohlcv, 'open'),
              self.safe_float(ohlcv, 'high'),
              self.safe_float(ohlcv, 'low'),
              self.safe_float(ohlcv, 'close'),
              self.safe_float(ohlcv, 'volume'),
          ]
  
      async def fetch_ohlcv(self, symbol, timeframe='5m', since=None, limit=None, params={}):
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'precision': self.timeframes[timeframe],
              'coin': market['id'].lower(),
          }
          if limit is not None and since is not None:
              request['from'] = int(since / 1000)
              request['to'] = self.sum(request['from'], limit * self.parse_timeframe(timeframe))
          elif since is not None:
              request['from'] = int(since / 1000)
              request['to'] = self.sum(self.seconds(), 1)
          elif limit is not None:
              request['to'] = self.seconds()
              request['from'] = request['to'] - (limit * self.parse_timeframe(timeframe))
          response = await self.v4PublicGetCoinCandle(self.extend(request, params))
          return self.parse_ohlcvs(response['candles'], market, timeframe, since, limit)
  
      async def fetch_orders(self, symbol=None, since=None, limit=None, params={}):
          if symbol is None:
              raise ArgumentsRequired(self.id + ' fetchOrders() requires a symbol argument')
          await self.load_markets()
          market = self.market(symbol)
          request = {
              'coin_pair': market['base'],
          }
          response = await self.privatePostListOrders(self.extend(request, params))
          responseData = self.safe_value(response, 'response_data', {})
          orders = self.safe_value(responseData, 'orders', [])
          return self.parse_orders(orders, market, since, limit)
  
      def sign(self, path, api='public', method='GET', params={}, headers=None, body=None):
          url = self.urls['api'][api] + '/'
          query = self.omit(params, self.extract_params(path))
          if api == 'public' or (api == 'v4Public'):
              url += self.implode_params(path, params)
              if query:
                  url += '?' + self.urlencode(query)
          else:
              self.check_required_credentials()
              url += self.version + '/'
              nonce = self.nonce()
              body = self.urlencode(self.extend({
                  'tapi_method': path,
                  'tapi_nonce': nonce,
              }, params))
              auth = '/tapi/' + self.version + '/' + '?' + body
              headers = {
                  'Content-Type': 'application/x-www-form-urlencoded',
                  'TAPI-ID': self.apiKey,
                  'TAPI-MAC': self.hmac(self.encode(auth), self.encode(self.secret), hashlib.sha512),
              }
          return {'url': url, 'method': method, 'body': body, 'headers': headers}
  
      async def request(self, path, api='public', method='GET', params={}, headers=None, body=None):
          response = await self.fetch2(path, api, method, params, headers, body)
          if 'error_message' in response:
              raise ExchangeError(self.id + ' ' + self.json(response))
          return response
  