DOC: release notes 0.5.8

BUG: Error when ingesting marketcap on windows

README.rst

@@ -5,6 +5,7 @@
 
 |version tag|
 |version status|
+|forum|
 |discord|
 |twitter|
 
@@ -22,9 +23,11 @@ visit `enigma.co <https://www.enigma.co>`_ to learn more about Catalyst.
 Catalyst builds on top of the well-established 
 `Zipline <https://github.com/quantopian/zipline>`_ project. We did our best to 
 minimize structural changes to the general API to maximize compatibility with 
-existing trading algorithms, developer knowledge, and tutorials. Join us on 
+existing trading algorithms, developer knowledge, and tutorials. Join us on the 
-`Discord <https://discord.gg/SJK32GY>`_ where we have a *#catalyst_dev* channel 
+`Catalyst Forum <https://catalyst.enigma.co/>`_ for questions around Catalyst, 
-for questions around Catalyst, algorithmic trading and technical support.
+algorithmic trading and technical support. We also have a 
+`Discord <https://discord.gg/SJK32GY>`_ group with the *#catalyst_dev* and 
+*#catalyst_setup* dedicated channels.
 
 Overview
 ========
@@ -61,6 +64,9 @@ Go to our `Documentation Website <https://enigmampc.github.io/catalyst/>`_.
 .. |version status| image:: https://img.shields.io/pypi/pyversions/enigma-catalyst.svg
    :target: https://pypi.python.org/pypi/enigma-catalyst
    
+.. |forum| image:: https://img.shields.io/badge/forum-join-green.svg
+   :target: https://catalyst.enigma.co/
+
 .. |discord| image:: https://img.shields.io/badge/discord-join%20chat-green.svg
    :target: https://discordapp.com/invite/SJK32GY
 

catalyst/__main__.py

@@ -580,7 +580,7 @@ def ingest_exchange(ctx, exchange_name, data_frequency, start, end,
 
     exchange_bundle = ExchangeBundle(exchange_name)
 
-    click.echo('Ingesting exchange bundle {}...'.format(exchange_name),
+    click.echo('Trying to ingest exchange bundle {}...'.format(exchange_name),
                sys.stdout)
     exchange_bundle.ingest(
         data_frequency=data_frequency,
@@ -793,7 +793,7 @@ def ls(ctx):
 )
 @click.pass_context
 def subscribe(ctx, dataset):
-    """Subscribe to an exisiting dataset.
+    """Subscribe to an existing dataset.
     """
     marketplace = Marketplace()
     marketplace.subscribe(dataset)

catalyst/assets/_assets.pyx

@@ -433,7 +433,7 @@ cdef class TradingPair(Asset):
         'taker',
         'trading_state',
         'data_source',
-        'decimals',
+        'decimals'
     })
     def __init__(self,
                  object symbol,
@@ -455,7 +455,7 @@ cdef class TradingPair(Asset):
                  float taker=0.0025,
                  float lot=0,
                  int decimals = 8,
-                 int trading_state=1,
+                 int trading_state=0,
                  object data_source='catalyst'):
         """
         Replicates the Asset constructor with some built-in conventions
@@ -600,51 +600,14 @@ cdef class TradingPair(Asset):
     cpdef to_dict(self):
         """
         Convert to a python dict.
-        
-        Repeat constructor params:
-             object symbol,
-             object exchange,
-             object start_date=None,
-             object asset_name=None,
-             int sid=0,
-             float leverage=1.0,
-             object end_daily=None,
-             object end_minute=None,
-             object end_date=None,
-             object exchange_symbol=None,
-             object first_traded=None,
-             object auto_close_date=None,
-             object exchange_full=None,
-             float min_trade_size=0.0001,
-             float max_trade_size=1000000,
-             float maker=0.0015,
-             float taker=0.0025,
-             float lot=0,
-             int decimals = 8,
-             int trading_state=1,
-             object data_source='catalyst',
         """
-        trading_pair_dict = dict(
+        #TODO: missing fields
-            symbol=self.symbol,
+        super_dict = super(TradingPair, self).to_dict()
-            exchange=self.exchange,
+        super_dict['end_daily'] = self.end_daily
-            start_date=self.start_date,
+        super_dict['end_minute'] = self.end_minute
-            asset_name=self.asset_name,
+        super_dict['leverage'] = self.leverage
-            leverage=self.leverage,
+        super_dict['min_trade_size'] = self.min_trade_size
-            end_daily=self.end_daily,
+        return super_dict
-            end_minute=self.end_minute,
-            end_date=self.end_date,
-            exchange_symbol=self.exchange_symbol,
-            exchange_full=self.exchange_full,
-            min_trade_size=self.min_trade_size,
-            max_trade_size=self.max_trade_size,
-            maker=self.maker,
-            taker=self.taker,
-            lot=self.lot,
-            decimals=self.decimals,
-            trading_state=self.trading_state,
-            data_source=self.data_source,
-        )
-        return trading_pair_dict
 
     def is_exchange_open(self, dt_minute):
         """
@@ -660,16 +623,6 @@ cdef class TradingPair(Asset):
         #TODO: make more dymanic to catch holds
         return True
 
-    def set_end_date(self, dt, data_frequency):
-        if data_frequency == 'minute':
-            self.end_minute = dt
-
-        else:
-            self.end_daily = dt
-
-    def set_start_date(self, dt):
-        self.start_date = dt
-
     cpdef __reduce__(self):
         """
         Function used by pickle to determine how to serialize/deserialize this
@@ -677,23 +630,26 @@ cdef class TradingPair(Asset):
         and whose second element is a tuple of all the attributes that should
         be serialized/deserialized during pickling.
         """
-        #TODO: make sure that all fields set there
+        # added arguments for catalyst
         return (self.__class__, (self.symbol,
                                  self.exchange,
                                  self.start_date,
                                  self.asset_name,
                                  self.sid,
                                  self.leverage,
+                                 self.end_daily,
+                                 self.end_minute,
                                  self.end_date,
+                                 self.exchange_symbol,
                                  self.first_traded,
                                  self.auto_close_date,
                                  self.exchange_full,
                                  self.min_trade_size,
                                  self.max_trade_size,
+                                 self.maker,
+                                 self.taker,
                                  self.lot,
                                  self.decimals,
-                                 self.taker,
-                                 self.maker,
                                  self.trading_state,
                                  self.data_source))
 

catalyst/constants.py

@@ -11,10 +11,7 @@ LOG_LEVEL = int(os.environ.get('CATALYST_LOG_LEVEL', logbook.INFO))
 
 SYMBOLS_URL = 'https://s3.amazonaws.com/enigmaco/catalyst-exchanges/' \
               '{exchange}/symbols.json'
-EXCHANGE_CONFIG_URL = 'https://s3.amazonaws.com/enigmaco/ohlcv/' \
+
-                      '{exchange}/config.json'
-BUNDLE_URL = 'https://s3.amazonaws.com/enigmaco/ohlcv/' \
-              '{exchange}/{data_frequency}/{name}.tar.gz'
 DATE_TIME_FORMAT = '%Y-%m-%d %H:%M'
 DATE_FORMAT = '%Y-%m-%d'
 
@@ -28,8 +25,7 @@ AUTO_INGEST = False
 AUTH_SERVER = 'https://data.enigma.co'
 
 # TODO: switch to mainnet
-ETH_REMOTE_NODE = 'https://ropsten.infura.io/'
+ETH_REMOTE_NODE = 'https://rinkeby.infura.io/'
-
 
 MARKETPLACE_CONTRACT = 'https://raw.githubusercontent.com/enigmampc/' \
                        'catalyst/master/catalyst/marketplace/' \
@@ -40,10 +36,13 @@ MARKETPLACE_CONTRACT_ABI = 'https://raw.githubusercontent.com/enigmampc/' \
                            'contract_marketplace_abi.json'
 
 # TODO: switch to mainnet
-ENIGMA_CONTRACT = 'https://raw.githubusercontent.com/enigmampc/catalyst/' \
+ENIGMA_CONTRACT = 'https://raw.githubusercontent.com/enigmampc/' \
-                  'master/catalyst/marketplace/' \
+                  'catalyst/master/catalyst/marketplace/' \
                   'contract_enigma_address.txt'
 
 ENIGMA_CONTRACT_ABI = 'https://raw.githubusercontent.com/enigmampc/' \
                       'catalyst/master/catalyst/marketplace/' \
                       'contract_enigma_abi.json'
+
+SUPPORTED_WALLETS = ['metamask', 'ledger', 'trezor', 'bitbox', 'keystore',
+                     'key']

catalyst/examples/mean_reversion_simple.py

@@ -33,12 +33,12 @@ def initialize(context):
     # parameters or values you're going to use.
 
     # In our example, we're looking at Neo in Ether.
-    context.market = symbol('eth_btc')
+    context.market = symbol('bnb_eth')
     context.base_price = None
     context.current_day = None
 
-    context.RSI_OVERSOLD = 55
+    context.RSI_OVERSOLD = 60
-    context.RSI_OVERBOUGHT = 60
+    context.RSI_OVERBOUGHT = 70
     context.CANDLE_SIZE = '15T'
 
     context.start_time = time.time()
@@ -248,14 +248,14 @@ if __name__ == '__main__':
 
     if live:
         run_algorithm(
-            capital_base=0.03,
+            capital_base=0.1,
             initialize=initialize,
             handle_data=handle_data,
             analyze=analyze,
-            exchange_name='poloniex',
+            exchange_name='binance',
             live=True,
             algo_namespace=NAMESPACE,
-            base_currency='btc',
+            base_currency='eth',
             live_graph=False,
             simulate_orders=False,
             stats_output=None,
@@ -274,7 +274,7 @@ if __name__ == '__main__':
         #    -x bitfinex -s 2017-10-1 -e 2017-11-10 -c usdt -n mean-reversion \
         #   --data-frequency minute --capital-base 10000
         run_algorithm(
-            capital_base=0.1,
+            capital_base=0.035,
             data_frequency='minute',
             initialize=initialize,
             handle_data=handle_data,

catalyst/examples/simple_loop.py

@@ -26,7 +26,7 @@ def handle_data(context, data):
         context.asset,
         fields='price',
         bar_count=20,
-        frequency='2H'
+        frequency='30T'
     )
     last_traded = prices.index[-1]
     log.info('last candle date: {}'.format(last_traded))

catalyst/exchange/ccxt/ccxt_exchange.py

@@ -1,33 +1,34 @@
+import json
+import os
 import re
 from collections import defaultdict
 
 import ccxt
 import pandas as pd
 import six
-from catalyst.assets._assets import TradingPair
+from ccxt import InvalidOrder, NetworkError, \
-from redo import retry
+    ExchangeError
+from logbook import Logger
+from six import string_types
 
 from catalyst.algorithm import MarketOrder
+from catalyst.assets._assets import TradingPair
 from catalyst.constants import LOG_LEVEL
 from catalyst.exchange.exchange import Exchange
 from catalyst.exchange.exchange_bundle import ExchangeBundle
 from catalyst.exchange.exchange_errors import InvalidHistoryFrequencyError, \
     ExchangeSymbolsNotFound, ExchangeRequestError, InvalidOrderStyle, \
-    UnsupportedHistoryFrequencyError, \
     ExchangeNotFoundError, CreateOrderError, InvalidHistoryTimeframeError, \
-    MarketsNotFoundError, InvalidMarketError
+    UnsupportedHistoryFrequencyError
 from catalyst.exchange.exchange_execution import ExchangeLimitOrder
-from catalyst.exchange.utils.ccxt_utils import get_exchange_config
+from catalyst.exchange.utils.exchange_utils import mixin_market_params, \
+    get_exchange_folder, get_catalyst_symbol, \
+    get_exchange_auth
 from catalyst.exchange.utils.datetime_utils import from_ms_timestamp, \
     get_epoch, \
     get_periods_range
-from catalyst.exchange.utils.exchange_utils import get_catalyst_symbol
 from catalyst.finance.order import Order, ORDER_STATUS
 from catalyst.finance.transaction import Transaction
-from ccxt import InvalidOrder, NetworkError, \
-    ExchangeError
-from logbook import Logger
-from six import string_types
 
 log = Logger('CCXT', level=LOG_LEVEL)
 
@@ -43,7 +44,7 @@ SUPPORTED_EXCHANGES = dict(
 
 class CCXT(Exchange):
     def __init__(self, exchange_name, key,
-                 secret, password, base_currency, config=None):
+                 secret, password, base_currency):
         log.debug(
             'finding {} in CCXT exchanges:\n{}'.format(
                 exchange_name, ccxt.exchanges
@@ -63,8 +64,6 @@ class CCXT(Exchange):
                 'password': password,
             })
             self.api.enableRateLimit = True
-            self.has = self.api.has
-            self.fees = self.api.fees
 
         except Exception:
             raise ExchangeNotFoundError(exchange_name=exchange_name)
@@ -72,7 +71,6 @@ class CCXT(Exchange):
         self._symbol_maps = [None, None]
 
         self.name = exchange_name
-        self.assets = []
 
         self.base_currency = base_currency
         self.transactions = defaultdict(list)
@@ -84,123 +82,97 @@ class CCXT(Exchange):
         self._common_symbols = dict()
 
         self.bundle = ExchangeBundle(self.name)
+        self.markets = None
         self._is_init = False
-        self._config = config
 
     def init(self):
         if self._is_init:
             return
 
-        if self._config is None:
+        exchange_folder = get_exchange_folder(self.name)
-            self._config = get_exchange_config(self.name)
+        filename = os.path.join(exchange_folder, 'cctx_markets.json')
-            log.debug(
-                'got exchange config {}:\n{}'.format(
-                    self.name, self._config
-                )
-            )
 
-        self.load_assets()
+        if os.path.exists(filename):
-        self._is_init = True
+            timestamp = os.path.getmtime(filename)
+            dt = pd.to_datetime(timestamp, unit='s', utc=True)
 
-    def load_assets(self):
+            if dt >= pd.Timestamp.utcnow().floor('1D'):
-        if self._config is None:
+                with open(filename) as f:
-            raise ValueError('Exchange config not available.')
+                    self.markets = json.load(f)
 
-        self.assets = []
+                log.debug('loaded markets for {}'.format(self.name))
-        for asset_dict in self._config['assets']:
-            asset = TradingPair(**asset_dict)
-            self.assets.append(asset)
 
-    def _fetch_markets(self):
+        if self.markets is None:
+            try:
                 markets_symbols = self.api.load_markets()
                 log.debug(
                     'fetching {} markets:\n{}'.format(
                         self.name, markets_symbols
                     )
                 )
-        try:
-            markets = self.api.fetch_markets()
 
-        except NetworkError as e:
+                self.markets = self.api.fetch_markets()
+                with open(filename, 'w+') as f:
+                    json.dump(self.markets, f, indent=4)
+
+            except (ExchangeError, NetworkError) as e:
+                log.warn(
+                    'unable to fetch markets {}: {}'.format(
+                        self.name, e
+                    )
+                )
                 raise ExchangeRequestError(error=e)
 
-        if not markets:
+        self.load_assets()
-            raise MarketsNotFoundError(
+        self._is_init = True
-                exchange=self.name,
+
+    @staticmethod
+    def find_exchanges(features=None, is_authenticated=False):
+        ccxt_features = []
+        if features is not None:
+            for feature in features:
+                if not feature.endswith('Bundle'):
+                    ccxt_features.append(feature)
+
+        exchange_names = []
+        for exchange_name in ccxt.exchanges:
+            if is_authenticated:
+                exchange_auth = get_exchange_auth(exchange_name)
+
+                has_auth = (exchange_auth['key'] != ''
+                            and exchange_auth['secret'] != '')
+
+                if not has_auth:
+                    continue
+
+            log.debug('loading exchange: {}'.format(exchange_name))
+            exchange = getattr(ccxt, exchange_name)()
+
+            if ccxt_features is None:
+                has_feature = True
+
+            else:
+                try:
+                    has_feature = all(
+                        [exchange.has[feature] for feature in ccxt_features]
                     )
 
-        for market in markets:
+                except Exception:
-            if 'id' not in market:
+                    has_feature = False
-                raise InvalidMarketError(
-                    exchange=self.name,
-                    market=market,
-                )
-        return markets
 
-    def create_exchange_config(self):
+            if has_feature:
-        config = dict(
+                try:
-            name=self.name,
+                    log.info('initializing {}'.format(exchange_name))
-            features=[feature for feature in self.has if self.has[feature]]
+                    exchange_names.append(exchange_name)
+
+                except Exception as e:
+                    log.warn(
+                        'unable to initialize exchange {}: {}'.format(
+                            exchange_name, e
                         )
-        markets = retry(
-            action=self._fetch_markets,
-            attempts=5,
-            sleeptime=5,
-            retry_exceptions=(ExchangeRequestError,),
-            cleanup=lambda: log.warn(
-                'fetching markets again for {}'.format(self.name)
-            ),
                     )
 
-        config['assets'] = []
+        return exchange_names
-        for market in markets:
-            asset = self.create_trading_pair(market=market)
-            config['assets'].append(asset)
-
-        return config
-
-    def create_trading_pair(self, market, start_dt=None, end_dt=None,
-                            leverage=1, end_daily=None, end_minute=None):
-        """
-        Creating a TradingPair from market and asset data.
-
-        Parameters
-        ----------
-        market: dict[str, Object]
-        start_dt
-        end_dt
-        leverage
-        end_daily
-        end_minute
-
-        Returns
-        -------
-
-        """
-        params = dict(
-            exchange=self.name,
-            data_source='catalyst',
-            exchange_symbol=market['id'],
-            symbol=get_catalyst_symbol(market),
-            start_date=start_dt,
-            end_date=end_dt,
-            leverage=leverage,
-            asset_name=market['symbol'],
-            end_daily=end_daily,
-            end_minute=end_minute,
-        )
-        self.apply_conditional_market_params(params, market)
-
-        return TradingPair(**params)
-
-    def load_assets(self):
-        if self._config is None or 'error' in self._config:
-            raise ValueError('Exchange config not available.')
-
-        self.assets = []
-        for asset_dict in self._config['assets']:
-            asset = TradingPair(**asset_dict)
-            self.assets.append(asset)
 
     def account(self):
         return None
@@ -218,6 +190,9 @@ class CCXT(Exchange):
                 if data_frequency == 'minute' and not freq.endswith('T'):
                     continue
 
+                elif data_frequency == 'hourly' and not freq.endswith('D'):
+                    continue
+
                 elif data_frequency == 'daily' and not freq.endswith('D'):
                     continue
 
@@ -232,11 +207,32 @@ class CCXT(Exchange):
 
         return frequencies
 
+    def get_market(self, symbol):
+        """
+        The CCXT market.
+
+        Parameters
+        ----------
+        symbol:
+            The CCXT symbol.
+
+        Returns
+        -------
+        dict[str, Object]
+
+        """
+        s = self.get_symbol(symbol)
+        market = next(
+            (market for market in self.markets if market['symbol'] == s),
+            None,
+        )
+        return market
+
     def substitute_currency_code(self, currency, source='catalyst'):
         if source == 'catalyst':
             currency = currency.upper()
 
-            key = self.api.common_currency_code(currency).lower()
+            key = self.api.common_currency_code(currency)
             self._common_symbols[key] = currency.lower()
             return key
 
@@ -264,7 +260,13 @@ class CCXT(Exchange):
         if source == 'ccxt':
             if isinstance(asset_or_symbol, string_types):
                 parts = asset_or_symbol.split('/')
-                return '{}_{}'.format(parts[0].lower(), parts[1].lower())
+                base_currency = self.substitute_currency_code(
+                    parts[0], source
+                )
+                quote_currency = self.substitute_currency_code(
+                    parts[1], source
+                )
+                return '{}_{}'.format(base_currency, quote_currency)
 
             else:
                 return asset_or_symbol.symbol
@@ -275,7 +277,13 @@ class CCXT(Exchange):
             ) else asset_or_symbol.symbol
 
             parts = symbol.split('_')
-            return '{}/{}'.format(parts[0].upper(), parts[1].upper())
+            base_currency = self.substitute_currency_code(
+                parts[0], source
+            )
+            quote_currency = self.substitute_currency_code(
+                parts[1], source
+            )
+            return '{}/{}'.format(base_currency, quote_currency)
 
     @staticmethod
     def map_frequency(value, source='ccxt', raise_error=True):
@@ -401,7 +409,7 @@ class CCXT(Exchange):
         )
 
     def get_candles(self, freq, assets, bar_count=1, start_dt=None,
-                    end_dt=None, floor_dates=True):
+                    end_dt=None):
         is_single = (isinstance(assets, TradingPair))
         if is_single:
             assets = [assets]
@@ -448,20 +456,16 @@ class CCXT(Exchange):
 
             candles[asset] = []
             for ohlcv in ohlcvs:
-                dt = pd.to_datetime(ohlcv[0], unit='ms', utc=True)
+                candles[asset].append(dict(
-                if floor_dates:
+                    last_traded=pd.to_datetime(
-                    dt = dt.floor('1T')
+                        ohlcv[0], unit='ms', utc=True
-
+                    ),
-                candles[asset].append(
-                    dict(
-                        last_traded=dt,
                     open=ohlcv[1],
                     high=ohlcv[2],
                     low=ohlcv[3],
                     close=ohlcv[4],
-                        volume=ohlcv[5],
+                    volume=ohlcv[5]
-                    )
+                ))
-                )
             candles[asset] = sorted(
                 candles[asset], key=lambda c: c['last_traded']
             )
@@ -479,53 +483,144 @@ class CCXT(Exchange):
         except ExchangeSymbolsNotFound:
             return None
 
-    def apply_conditional_market_params(self, params, market):
+    def get_asset_defs(self, market):
         """
-        Applies a CCXT market dict to parameters of TradingPair init.
+        The local and Catalyst definitions of the specified market.
 
         Parameters
         ----------
-        params: dict[Object]
+        market: dict[str, Object]
-        market: dict[Object]
+            The CCXT market dicts.
+
+        Returns
+        -------
+        dict[str, Object]
+            The asset definition.
+
+        """
+        asset_defs = []
+
+        for is_local in (False, True):
+            asset_def = self.get_asset_def(market, is_local)
+            asset_defs.append((asset_def, is_local))
+
+        return asset_defs
+
+    def get_asset_def(self, market, is_local=False):
+        """
+        The asset definition (in symbols.json files) corresponding
+        to the the specified market.
+
+        Parameters
+        ----------
+        market: dict[str, Object]
+            The CCXT market dict.
+        is_local
+            Whether to search in local or Catalyst asset definitions.
+
+        Returns
+        -------
+        dict[str, Object]
+            The asset definition.
+
+        """
+        exchange_symbol = market['id']
+
+        symbol_map = self._fetch_symbol_map(is_local)
+        if symbol_map is not None:
+            assets_lower = {k.lower(): v for k, v in symbol_map.items()}
+            key = exchange_symbol.lower()
+
+            asset = assets_lower[key] if key in assets_lower else None
+            if asset is not None:
+                return asset
+
+            else:
+                return None
+
+        else:
+            return None
+
+    def create_trading_pair(self, market, asset_def=None, is_local=False):
+        """
+        Creating a TradingPair from market and asset data.
+
+        Parameters
+        ----------
+        market: dict[str, Object]
+        asset_def: dict[str, Object]
+        is_local: bool
 
         Returns
         -------
 
         """
-        # TODO: make this more externalized / configurable
+        data_source = 'local' if is_local else 'catalyst'
-        # Consider representing in some type of JSON structure
+        params = dict(
-        if 'active' in market:
+            exchange=self.name,
-            params['trading_state'] = 1 if market['active'] else 0
+            data_source=data_source,
+            exchange_symbol=market['id'],
+        )
+        mixin_market_params(self.name, params, market)
+
+        if asset_def is not None:
+            params['symbol'] = asset_def['symbol']
+
+            params['start_date'] = asset_def['start_date'] \
+                if 'start_date' in asset_def else None
+
+            params['end_date'] = asset_def['end_date'] \
+                if 'end_date' in asset_def else None
+
+            params['leverage'] = asset_def['leverage'] \
+                if 'leverage' in asset_def else 1.0
+
+            params['asset_name'] = asset_def['asset_name'] \
+                if 'asset_name' in asset_def else None
+
+            params['end_daily'] = asset_def['end_daily'] \
+                if 'end_daily' in asset_def \
+                   and asset_def['end_daily'] != 'N/A' else None
+
+            params['end_minute'] = asset_def['end_minute'] \
+                if 'end_minute' in asset_def \
+                   and asset_def['end_minute'] != 'N/A' else None
 
         else:
-            params['trading_state'] = 1
+            params['symbol'] = get_catalyst_symbol(market)
+            # TODO: add as an optional column
+            params['leverage'] = 1.0
 
-        if 'lot' in market:
+        return TradingPair(**params)
-            params['min_trade_size'] = market['lot']
-            params['lot'] = market['lot']
 
-        if self.name == 'bitfinex':
+    def load_assets(self):
-            params['maker'] = 0.001
+        log.debug('loading assets for {}'.format(self.name))
-            params['taker'] = 0.002
+        self.assets = []
 
-        elif 'maker' in market and 'taker' in market \
+        for market in self.markets:
-            and market['maker'] is not None \
+            if 'id' not in market:
-            and market['taker'] is not None:
+                log.warn('invalid market: {}'.format(market))
-            params['maker'] = market['maker']
+                continue
-            params['taker'] = market['taker']
 
-        else:
+            asset_defs = self.get_asset_defs(market)
-            # TODO: default commission, make configurable
-            params['maker'] = 0.0015
-            params['taker'] = 0.0025
 
-        info = market['info'] if 'info' in market else None
+            asset = None
-        if info:
+            for asset_def in asset_defs:
-            if 'minimum_order_size' in info:
+                if asset_def[0] is not None or not asset_defs[1]:
-                params['min_trade_size'] = float(info['minimum_order_size'])
+                    try:
+                        asset = self.create_trading_pair(
+                            market=market,
+                            asset_def=asset_def[0],
+                            is_local=asset_def[1]
+                        )
+                        self.assets.append(asset)
 
-                if 'lot' not in params:
+                    except TypeError as e:
-                    params['lot'] = params['min_trade_size']
+                        log.warn('unable to add asset: {}'.format(e))
+
+            if asset is None:
+                asset = self.create_trading_pair(market=market)
+                self.assets.append(asset)
 
     def get_balances(self):
         try:
@@ -663,14 +758,18 @@ class CCXT(Exchange):
 
         side = 'buy' if amount > 0 else 'sell'
         if hasattr(self.api, 'amount_to_lots'):
-            adj_amount = self.api.amount_to_lots(
+            # TODO: is this right?
-                symbol=symbol,
+            if self.api.markets is None:
-                amount=abs(amount),
+                self.api.load_markets()
-            )
+
-            if adj_amount != abs(amount):
+            # https://github.com/ccxt/ccxt/issues/1483
-                log.info(
+            adj_amount = round(abs(amount), asset.decimals)
-                    'adjusted order amount {} to {} based on lot size'.format(
+            market = self.api.markets[symbol]
-                        abs(amount), adj_amount,
+            if 'lots' in market and market['lots'] > amount:
+                raise CreateOrderError(
+                    exchange=self.name,
+                    e='order amount lower than the smallest lot: {}'.format(
+                        amount
                     )
                 )
 
@@ -898,7 +997,7 @@ class CCXT(Exchange):
             symbol = self.get_symbol(asset_or_symbol) \
                 if asset_or_symbol is not None else None
             self.api.cancel_order(id=order_id,
-                                  symbol=symbol, params=params)
+                                  symbol=symbol, params= params)
 
         except (ExchangeError, NetworkError) as e:
             log.warn(
@@ -1016,25 +1115,17 @@ class CCXT(Exchange):
         return result
 
     def get_trades(self, asset, my_trades=True, start_dt=None, limit=100):
+        if not my_trades:
+            raise NotImplemented(
+                'get_trades only supports "my trades"'
+            )
+
         # TODO: is it possible to sort this? Limit is useless otherwise.
         ccxt_symbol = self.get_symbol(asset)
-        if start_dt:
-            delta = start_dt - get_epoch()
-            since = int(delta.total_seconds()) * 1000
-        else:
-            since = None
-
         try:
-            if my_trades:
             trades = self.api.fetch_my_trades(
                 symbol=ccxt_symbol,
-                    since=since,
+                since=start_dt,
-                    limit=limit,
-                )
-            else:
-                trades = self.api.fetch_trades(
-                    symbol=ccxt_symbol,
-                    since=since,
                 limit=limit,
             )
         except (ExchangeError, NetworkError) as e:

catalyst/exchange/exchange.py

@@ -5,8 +5,6 @@ from time import sleep
 
 import numpy as np
 import pandas as pd
-from logbook import Logger
-
 from catalyst.constants import LOG_LEVEL
 from catalyst.data.data_portal import BASE_FIELDS
 from catalyst.exchange.exchange_bundle import ExchangeBundle
@@ -18,9 +16,11 @@ from catalyst.exchange.exchange_errors import MismatchingBaseCurrencies, \
     TickerNotFoundError, NotEnoughCashError
 from catalyst.exchange.utils.datetime_utils import get_delta, \
     get_periods_range, \
-    get_periods, get_start_dt, get_frequency
+    get_periods, get_start_dt, get_frequency, \
-from catalyst.exchange.utils.exchange_utils import \
+    get_candles_number_from_minutes
-    resample_history_df, has_bundle
+from catalyst.exchange.utils.exchange_utils import get_exchange_symbols, \
+    resample_history_df, has_bundle, get_candles_df
+from logbook import Logger
 
 log = Logger('Exchange', level=LOG_LEVEL)
 
@@ -199,12 +199,8 @@ class Exchange:
                 )
                 assets.append(asset)
 
-            except SymbolNotFoundOnExchange:
+            except SymbolNotFoundOnExchange as e:
-                log.debug(
+                log.warn(e)
-                    'skipping non-existent market {} {}'.format(
-                        self.name, symbol
-                    )
-                )
         return assets
 
     def get_asset(self, symbol, data_frequency=None, is_exchange_symbol=False,
@@ -257,10 +253,10 @@ class Exchange:
             elif data_frequency is not None:
                 applies = (
                     (
-                        data_frequency == 'minute' and a.end_minute is not None
+                        data_frequency == 'minute' and
-                    ) or (
+                        a.end_minute is not None)
-                        data_frequency == 'daily' and a.end_daily is not None
+                    or (
-                    )
+                        data_frequency == 'daily' and a.end_daily is not None)
                 )
 
             else:
@@ -293,6 +289,16 @@ class Exchange:
         log.debug('found asset: {}'.format(asset))
         return asset
 
+    def fetch_symbol_map(self, is_local=False):
+        index = 1 if is_local else 0
+        if self._symbol_maps[index] is not None:
+            return self._symbol_maps[index]
+
+        else:
+            symbol_map = get_exchange_symbols(self.name, is_local)
+            self._symbol_maps[index] = symbol_map
+            return symbol_map
+
     @abstractmethod
     def init(self):
         """
@@ -304,13 +310,24 @@ class Exchange:
         """
 
     @abstractmethod
-    def create_exchange_config(self):
+    def load_assets(self, is_local=False):
         """
-        Fetch the exchange market data and generate a config object
+        Populate the 'assets' attribute with a dictionary of Assets.
-        Returns
+        The key of the resulting dictionary is the exchange specific
-        -------
+        currency pair symbol. The universal symbol is contained in the
+        'symbol' attribute of each asset.
+
+        Notes
+        -----
+        The sid of each asset is calculated based on a numeric hash of the
+        universal symbol. This simple approach avoids maintaining a mapping
+        of sids.
+
+        This method can be omerridden if an exchange offers equivalent data
+        via its api.
 
         """
+        pass
 
     def get_spot_value(self, assets, field, dt=None, data_frequency='minute'):
         """
@@ -491,7 +508,12 @@ class Exchange:
         # so we request more than needed
         # TODO: consider defining a const per asset
         # and/or some retry mechanism (in each iteration request more data)
-        requested_bar_count = bar_count + 30
+        kExtra_minutes_candles = 150
+        requested_bar_count = bar_count + \
+            get_candles_number_from_minutes(unit,
+                                            candle_size,
+                                            kExtra_minutes_candles)
+
         # The get_history method supports multiple asset
         candles = self.get_candles(
             freq=freq,
@@ -509,11 +531,14 @@ class Exchange:
                     asset=asset,
                     exchange=self.name)
 
+        # for avoiding unnecessary forward fill end_dt is taken back one second
+        forward_fill_till_dt = end_dt - timedelta(seconds=1)
+
         series = get_candles_df(candles=candles,
                                 field=field,
                                 freq=frequency,
                                 bar_count=requested_bar_count,
-                                end_dt=end_dt)
+                                end_dt=forward_fill_till_dt)
 
         # TODO: consider how to approach this edge case
         # delta_candle_size = candle_size * 60 if unit == 'H' else candle_size
@@ -582,7 +607,7 @@ class Exchange:
         # TODO: this function needs some work,
         # we're currently using it just for benchmark data
         freq, candle_size, unit, data_frequency = get_frequency(
-            frequency, data_frequency
+            frequency, data_frequency, supported_freqs=['T', 'D']
         )
         adj_bar_count = candle_size * bar_count
         try:
@@ -647,20 +672,16 @@ class Exchange:
 
         return df
 
-    def _check_low_balance(self, currency, balances, amount, open_orders=None):
+    def _check_low_balance(self, currency, balances, amount):
         free = balances[currency]['free'] if currency in balances else 0.0
 
-        if open_orders:
-            # TODO: make sure that this works
-            free += sum([order.amount for order in open_orders])
-
         if free < amount:
             return free, True
 
         else:
             return free, False
 
-    def sync_positions(self, positions, open_orders=None, cash=None,
+    def sync_positions(self, positions, cash=None,
                        check_balances=False):
         """
         Update the portfolio cash and position balances based on the
@@ -690,7 +711,7 @@ class Exchange:
                     balances=balances,
                     amount=cash,
                 )
-                if is_lower and not open_orders:
+                if is_lower:
                     raise NotEnoughCashError(
                         currency=self.base_currency,
                         exchange=self.name,

catalyst/exchange/exchange_algorithm.py

@@ -18,11 +18,9 @@ from datetime import timedelta
 from os import listdir
 from os.path import isfile, join, exists
 
+import catalyst.protocol as zp
 import logbook
 import pandas as pd
-from redo import retry
-
-import catalyst.protocol as zp
 from catalyst.algorithm import TradingAlgorithm
 from catalyst.constants import LOG_LEVEL
 from catalyst.exchange.exchange_blotter import ExchangeBlotter
@@ -52,6 +50,7 @@ from catalyst.utils.api_support import api_method
 from catalyst.utils.input_validation import error_keywords, ensure_upper_case
 from catalyst.utils.math_utils import round_nearest
 from catalyst.utils.preprocess import preprocess
+from redo import retry
 
 log = logbook.Logger('exchange_algorithm', level=LOG_LEVEL)
 
@@ -671,7 +670,6 @@ class ExchangeTradingAlgorithmLive(ExchangeTradingAlgorithmBase):
             required_cash = self.portfolio.cash if not orders else None
             cash, positions_value = exchange.sync_positions(
                 positions=exchange_positions,
-                open_orders=orders,
                 check_balances=check_balances,
                 cash=required_cash,
             )

catalyst/exchange/exchange_bundle.py

@@ -1,4 +1,3 @@
-import copy
 import os
 import shutil
 from datetime import timedelta
@@ -9,12 +8,8 @@ from operator import is_not
 import numpy as np
 import pandas as pd
 import pytz
-from catalyst.assets._assets import TradingPair
-from logbook import Logger
-from pytz import UTC
-from six import itervalues
-
 from catalyst import get_calendar
+from catalyst.assets._assets import TradingPair
 from catalyst.constants import DATE_TIME_FORMAT, AUTO_INGEST
 from catalyst.constants import LOG_LEVEL
 from catalyst.data.minute_bars import BcolzMinuteOverlappingData, \
@@ -28,11 +23,14 @@ from catalyst.exchange.exchange_errors import EmptyValuesInBundleError, \
 from catalyst.exchange.utils.bundle_utils import range_in_bundle, \
     get_bcolz_chunk, get_df_from_arrays, get_assets
 from catalyst.exchange.utils.datetime_utils import get_start_dt, \
-    get_period_label, get_month_start_end, get_year_start_end, get_period, \
+    get_period_label, get_month_start_end, get_year_start_end
-    timestr_to_dt
+from catalyst.exchange.utils.exchange_utils import get_exchange_folder, \
-from catalyst.exchange.utils.exchange_utils import get_exchange_folder
+    save_exchange_symbols, mixin_market_params, get_catalyst_symbol
 from catalyst.utils.cli import maybe_show_progress
 from catalyst.utils.paths import ensure_directory
+from logbook import Logger
+from pytz import UTC
+from six import itervalues
 
 log = Logger('exchange_bundle', level=LOG_LEVEL)
 
@@ -514,8 +512,8 @@ class ExchangeBundle:
                 continue
 
             dates = pd.date_range(
-                start=get_period(adj_start, data_frequency),
+                start=get_period_label(adj_start, data_frequency),
-                end=get_period(adj_end, data_frequency),
+                end=get_period_label(adj_end, data_frequency),
                 freq='MS' if data_frequency == 'minute' else 'AS',
                 tz=UTC
             )
@@ -554,9 +552,7 @@ class ExchangeBundle:
 
             # We sort the chunks by end date to ingest most recent data first
             chunks[asset].sort(
-                key=lambda chunk: timestr_to_dt(
+                key=lambda chunk: pd.to_datetime(chunk['period'])
-                    chunk['period'], data_frequency
-                )
             )
 
         return chunks
@@ -602,6 +598,7 @@ class ExchangeBundle:
         # we want to give an end_date far in time
         writer = self.get_writer(start_dt, end_dt, data_frequency)
         if show_breakdown:
+            if chunks:
                 for asset in chunks:
                     with maybe_show_progress(
                         chunks[asset],
@@ -611,8 +608,7 @@ class ExchangeBundle:
                             exchange=self.exchange_name,
                             frequency=data_frequency,
                             symbol=asset.symbol
-                    )
+                            )) as it:
-                ) as it:
                         for chunk in it:
                             problems += self.ingest_ctable(
                                 asset=chunk['asset'],
@@ -624,12 +620,10 @@ class ExchangeBundle:
                             )
         else:
             all_chunks = list(chain.from_iterable(itervalues(chunks)))
-
             # We sort the chunks by end date to ingest most recent data first
+            if all_chunks:
                 all_chunks.sort(
-                key=lambda chunk: timestr_to_dt(
+                    key=lambda chunk: pd.to_datetime(chunk['period'])
-                    chunk['period'], data_frequency
-                )
                 )
                 with maybe_show_progress(
                     all_chunks,
@@ -638,8 +632,7 @@ class ExchangeBundle:
                           '{exchange}'.format(
                         exchange=self.exchange_name,
                         frequency=data_frequency,
-                )
+                        )) as it:
-            ) as it:
                     for chunk in it:
                         problems += self.ingest_ctable(
                             asset=chunk['asset'],
@@ -708,36 +701,42 @@ class ExchangeBundle:
         for symbol in symbols:
             start_dt = df.index.get_level_values(1).min()
             end_dt = df.index.get_level_values(1).max()
+            end_dt_key = 'end_{}'.format(data_frequency)
 
-            try:
+            market = self.exchange.get_market(symbol)
-                asset = self.exchange.get_asset(symbol, is_local=True)
+            if market is None:
-            except:
+                raise ValueError('symbol not available in the exchange.')
-                asset = copy.deepcopy(self.exchange.get_asset(symbol))
 
-            if asset.data_source == 'local':
+            params = dict(
-                asset.start_date = asset.start_date \
+                exchange=self.exchange.name,
-                    if asset.start_date < start_dt else start_dt
+                data_source='local',
+                exchange_symbol=market['id'],
+            )
+            mixin_market_params(self.exchange_name, params, market)
 
-                if data_frequency == 'daily':
+            asset_def = self.exchange.get_asset_def(market, True)
-                    asset.end_date = asset.end_daily = asset.end_daily \
+            if asset_def is not None:
-                        if asset.end_daily > end_dt else end_dt
+                params['symbol'] = asset_def['symbol']
+
+                params['start_date'] = asset_def['start_date'] \
+                    if asset_def['start_date'] < start_dt else start_dt
+
+                params['end_date'] = asset_def[end_dt_key] \
+                    if asset_def[end_dt_key] > end_dt else end_dt
+
+                params['end_daily'] = end_dt \
+                    if data_frequency == 'daily' else asset_def['end_daily']
+
+                params['end_minute'] = end_dt \
+                    if data_frequency == 'minute' else asset_def['end_minute']
 
             else:
-                    asset.end_date = asset.end_minute = asset.end_minute \
+                params['symbol'] = get_catalyst_symbol(market)
-                        if asset.end_minute > end_dt else end_dt
 
-            else:
+                params['end_daily'] = end_dt \
-                asset.data_source = 'local'
+                    if data_frequency == 'daily' else 'N/A'
-                asset.start_date = start_dt
+                params['end_minute'] = end_dt \
-                asset.end_dt = end_dt
+                    if data_frequency == 'minute' else 'N/A'
-
-                if data_frequency == 'daily':
-                    asset.end_daily = end_dt
-                    asset.end_minute = None
-
-                else:
-                    asset.end_daily = None
-                    asset.end_minute = end_dt
 
             if min_start_dt is None or start_dt < min_start_dt:
                 min_start_dt = start_dt
@@ -745,9 +744,11 @@ class ExchangeBundle:
             if max_end_dt is None or end_dt > max_end_dt:
                 max_end_dt = end_dt
 
-            assets[symbol] = asset
+            asset = TradingPair(**params)
+            assets[market['id']] = asset
+
+        save_exchange_symbols(self.exchange_name, assets, True)
 
-        # TODO: update config.json
         writer = self.get_writer(
             start_dt=min_start_dt.replace(hour=00, minute=00),
             end_dt=max_end_dt.replace(hour=23, minute=59),

catalyst/exchange/exchange_data_portal.py

@@ -1,4 +1,5 @@
 import abc
+import datetime
 
 import numpy as np
 import pandas as pd
@@ -296,24 +297,38 @@ class DataPortalExchangeBacktest(DataPortalExchangeBase):
         bundle = self.exchange_bundles[exchange_name]  # type: ExchangeBundle
 
         freq, candle_size, unit, adj_data_frequency = get_frequency(
-            frequency, data_frequency
+            frequency, data_frequency, supported_freqs=['T', 'D']
         )
         adj_bar_count = candle_size * bar_count
 
-        if data_frequency == 'minute' and adj_data_frequency == 'daily':
+        if data_frequency == "minute":
-            end_dt = end_dt.floor('1D')
+            # for minute frequency always request data until the
+            # current minute (do not include the current minute)
+            last_dt_for_series = end_dt - datetime.timedelta(minutes=1)
+
+            # read the minute bundles for daily frequency to
+            # support last partial candle
+            # TODO: optimize this by applying this logic only for the last day
+            if adj_data_frequency == 'daily':
+                adj_data_frequency = 'minute'
+                adj_bar_count = adj_bar_count * 1440
+
+        else:  # data_frequency == "daily":
+            last_dt_for_series = end_dt
 
         series = bundle.get_history_window_series_and_load(
             assets=assets,
-            end_dt=end_dt,
+            end_dt=last_dt_for_series,
             bar_count=adj_bar_count,
             field=field,
             data_frequency=adj_data_frequency,
             algo_end_dt=self._last_available_session,
         )
 
-        start_dt = get_start_dt(end_dt, adj_bar_count, data_frequency)
+        start_dt = get_start_dt(last_dt_for_series, adj_bar_count,
+                                adj_data_frequency, False)
         df = resample_history_df(pd.DataFrame(series), freq, field, start_dt)
+
         return df
 
     def get_exchange_spot_value(self,

catalyst/exchange/exchange_errors.py

@@ -329,17 +329,3 @@ class NoCandlesReceivedFromExchange(ZiplineError):
         'Although requesting {bar_count} candles until {end_dt} of asset {asset}, '
         'an empty list of candles was received for {exchange}.'
     ).strip()
-
-
-class MarketsNotFoundError(ZiplineError):
-    msg = (
-        'Exchange {exchange} contains no valid market so it is unusable in '
-        'Catalyst.'
-    ).strip()
-
-
-class InvalidMarketError(ZiplineError):
-    msg = (
-        'Exchange {exchange} contains at least one incorrectly structured '
-        'market: {market}, so it is unusable in Catalyst.'
-    ).strip()

catalyst/exchange/utils/bundle_utils.py

@@ -5,7 +5,6 @@ from datetime import datetime
 import numpy as np
 import pandas as pd
 
-from catalyst.constants import BUNDLE_URL
 from catalyst.data.bundles.core import download_without_progress
 from catalyst.exchange.utils.exchange_utils import get_exchange_bundles_folder
 import os
@@ -49,11 +48,10 @@ def get_bcolz_chunk(exchange_name, symbol, data_frequency, period):
     path = os.path.join(root, name)
 
     if not os.path.isdir(path):
-        url = BUNDLE_URL.format(
+        url = 'https://s3.amazonaws.com/enigmaco/catalyst-bundles/' \
+              'exchange-{exchange}/{name}.tar.gz'.format(
             exchange=exchange_name,
-            data_frequency=data_frequency,
+            name=name)
-            name=name,
-        )
 
         bytes = download_without_progress(url)
         with tarfile.open('r', fileobj=bytes) as tar:
@@ -77,14 +75,14 @@ def get_df_from_arrays(arrays, periods):
 
     """
     ohlcv = dict()
-    for index, field in enumerate(['open', 'high', 'low', 'close', 'volume']):
+    for index, field in enumerate(
+            ['open', 'high', 'low', 'close', 'volume']):
         ohlcv[field] = arrays[index].flatten()
 
     df = pd.DataFrame(
         data=ohlcv,
         index=periods
     )
-    df.index.name = 'last_traded'
     return df
 
 

catalyst/exchange/utils/ccxt_utils.py

@@ -1,307 +0,0 @@
-import json
-import os
-import pandas as pd
-from six.moves.urllib import request
-
-from catalyst.assets._assets import TradingPair
-from ccxt import NetworkError
-from catalyst.constants import LOG_LEVEL, EXCHANGE_CONFIG_URL
-from catalyst.exchange.exchange_errors import MarketsNotFoundError, \
-    InvalidMarketError
-from catalyst.exchange.utils.exchange_utils import get_catalyst_symbol, \
-    get_exchange_folder, get_exchange_auth
-from catalyst.exchange.utils.serialization_utils import ExchangeJSONDecoder, \
-    ExchangeJSONEncoder
-from logbook import Logger
-from redo import retry
-from ccxt.base.exchange import Exchange
-from catalyst.utils.paths import last_modified_time, data_root, \
-    ensure_directory
-import ccxt
-
-log = Logger('ccxt_utils', level=LOG_LEVEL)
-
-
-def scan_exchange_configs(features=None, history=None, is_authenticated=False,
-                          path=None):
-    """
-    Finding exchanges from their config files
-
-    Parameters
-    ----------
-    features
-    is_authenticated
-
-    Returns
-    -------
-
-    """
-    for exchange_name in ccxt.exchanges:
-        config = get_exchange_config(exchange_name, path)
-        if not config or 'error' in config:
-            log.info(
-                'skipping invalid exchange {}'.format(exchange_name)
-            )
-
-        # Check if the exchange has an auth.json file
-        if is_authenticated:
-            exchange_auth = get_exchange_auth(exchange_name)
-            has_auth = (exchange_auth['key'] != ''
-                        and exchange_auth['secret'] != '')
-
-            if not has_auth:
-                continue
-
-        if features is None:
-            has_features = True
-
-        else:
-            try:
-                supported_features = [
-                    feature for feature in features if
-                    feature in config['features']
-                ]
-                has_features = len(supported_features) > 0
-            except Exception:
-                has_features = False
-
-        # TODO: filter by history
-        if has_features:
-            yield config
-
-
-def get_exchange_config(exchange_name, path=None, environ=None,
-                        expiry='1H'):
-    """
-    The de-serialized content of the exchange's config.json.
-    Parameters
-    ----------
-    exchange_name: str
-        The exchange name
-    filename: str
-        The target file
-    environ:
-
-    Returns
-    -------
-    config: dict[srt, Object]
-        The config dictionary.
-
-    """
-    try:
-        if path is None:
-            root = data_root(environ)
-            path = os.path.join(root, 'exchanges')
-
-        folder = os.path.join(path, exchange_name)
-        ensure_directory(folder)
-
-        filename = os.path.join(folder, 'config.json')
-        url = EXCHANGE_CONFIG_URL.format(exchange=exchange_name)
-        if os.path.isfile(filename):
-            # If the file exists, only update periodically to avoid
-            # unnecessary calls
-            now = pd.Timestamp.utcnow()
-            limit = pd.Timedelta(expiry)
-            if pd.Timedelta(now - last_modified_time(filename)) > limit:
-                try:
-                    request.urlretrieve(url=url, filename=filename)
-                except Exception as e:
-                    log.warn(
-                        'unable to update config {} => {}: {}'.format(
-                            url, filename, e
-                        )
-                    )
-
-        else:
-            request.urlretrieve(url=url, filename=filename)
-
-        with open(filename) as data_file:
-            data = json.load(data_file, cls=ExchangeJSONDecoder)
-            return data
-
-    except Exception as e:
-        log.warn(
-            'unable to download {} config: {}'.format(
-                exchange_name, e
-            )
-        )
-        return dict(error=e)
-
-
-def save_exchange_config(config, filename=None, environ=None):
-    """
-    Save assets into an exchange_config file.
-    Parameters
-    ----------
-    exchange_name: str
-    config
-    environ
-    Returns
-    -------
-    """
-    if filename is None:
-        name = 'config.json'
-        exchange_folder = get_exchange_folder(config['id'], environ)
-        filename = os.path.join(exchange_folder, name)
-
-    with open(filename, 'w+') as handle:
-        json.dump(config, handle, indent=4, cls=ExchangeJSONEncoder)
-
-
-def fetch_markets(ccxt_exchange):
-    """
-    Fetches CCXT market objects.
-    
-    Parameters
-    ----------
-    ccxt_exchange: Exchange
-
-    Returns
-    -------
-
-    """
-    markets_symbols = ccxt_exchange.load_markets()
-    log.debug(
-        'fetching {} markets:\n{}'.format(
-            ccxt_exchange.name, markets_symbols
-        )
-    )
-    markets = ccxt_exchange.fetch_markets()
-
-    if not markets:
-        raise MarketsNotFoundError(
-            exchange=ccxt_exchange.name,
-        )
-
-    for market in markets:
-        if 'id' not in market:
-            raise InvalidMarketError(
-                exchange=ccxt_exchange.name,
-                market=market,
-            )
-    return markets
-
-
-def create_exchange_config(ccxt_exchange):
-    """
-    Creates an exchange config structure. 
-    
-    Parameters
-    ----------
-    ccxt_exchange: Exchange
-
-    Returns
-    -------
-
-    """
-    exchange_name = ccxt_exchange.__class__.__name__
-    config = dict(
-        id=exchange_name,
-        name=ccxt_exchange.name,
-        features=[
-            feature for feature in ccxt_exchange.has if
-            ccxt_exchange.has[feature]
-        ]
-    )
-    markets = retry(
-        action=fetch_markets,
-        attempts=5,
-        sleeptime=5,
-        retry_exceptions=(NetworkError,),
-        cleanup=lambda: log.warn(
-            'fetching markets again for {}'.format(exchange_name)
-        ),
-        args=(ccxt_exchange,)
-    )
-
-    config['assets'] = []
-    for market in markets:
-        asset = create_trading_pair(exchange_name, market)
-        config['assets'].append(asset)
-
-    return config
-
-
-def create_trading_pair(exchange_name, market, start_dt=None, end_dt=None,
-                        leverage=1, end_daily=None, end_minute=None):
-    """
-    Creating a TradingPair from market and asset data.
-
-    Parameters
-    ----------
-    market: dict[str, Object]
-    start_dt
-    end_dt
-    leverage
-    end_daily
-    end_minute
-
-    Returns
-    -------
-
-    """
-    params = dict(
-        exchange=exchange_name,
-        data_source='catalyst',
-        exchange_symbol=market['id'],
-        symbol=get_catalyst_symbol(market),
-        start_date=start_dt,
-        end_date=end_dt,
-        leverage=leverage,
-        asset_name=market['symbol'],
-        end_daily=end_daily,
-        end_minute=end_minute,
-    )
-    apply_conditional_market_params(exchange_name, params, market)
-
-    return TradingPair(**params)
-
-
-def apply_conditional_market_params(exchange_name, params, market):
-    """
-    Applies a CCXT market dict to parameters of TradingPair init.
-
-    Parameters
-    ----------
-    params: dict[Object]
-    market: dict[Object]
-
-    Returns
-    -------
-
-    """
-    # TODO: make this more externalized / configurable
-    # Consider representing in some type of JSON structure
-    if 'active' in market:
-        params['trading_state'] = 1 if market['active'] else 0
-
-    else:
-        params['trading_state'] = 1
-
-    if 'lot' in market:
-        params['min_trade_size'] = market['lot']
-        params['lot'] = market['lot']
-
-    if exchange_name == 'bitfinex':
-        params['maker'] = 0.001
-        params['taker'] = 0.002
-
-    elif 'maker' in market and 'taker' in market \
-        and market['maker'] is not None \
-        and market['taker'] is not None:
-        params['maker'] = market['maker']
-        params['taker'] = market['taker']
-
-    else:
-        # TODO: default commission, make configurable
-        params['maker'] = 0.0015
-        params['taker'] = 0.0025
-
-    info = market['info'] if 'info' in market else None
-    if info:
-        if 'minimum_order_size' in info:
-            params['min_trade_size'] = float(info['minimum_order_size'])
-
-            if 'lot' not in params:
-                params['lot'] = params['min_trade_size']

catalyst/exchange/utils/datetime_utils.py

@@ -1,4 +1,5 @@
 import calendar
+import math
 import re
 from datetime import datetime, timedelta, date
 
@@ -164,12 +165,6 @@ def get_start_dt(end_dt, bar_count, data_frequency, include_first=True):
     return start_dt
 
 
-def timestr_to_dt(timestr, data_frequency):
-    dt_format = '%Y' if data_frequency == 'daily' else '%Y%m'
-    dt = pd.to_datetime(timestr, format=dt_format, utc=True)
-    return dt
-
-
 def get_period_label(dt, data_frequency):
     """
     The period label for the specified date and frequency.
@@ -183,26 +178,6 @@ def get_period_label(dt, data_frequency):
     -------
     str
 
-    """
-    if data_frequency == 'minute':
-        return '{}{:02d}'.format(dt.year, dt.month)
-    else:
-        return '{}'.format(dt.year)
-
-
-def get_period(dt, data_frequency):
-    """
-    The period label for the specified date and frequency.
-
-    Parameters
-    ----------
-    dt: datetime
-    data_frequency: str
-
-    Returns
-    -------
-    str
-
     """
     if data_frequency == 'minute':
         return '{}-{:02d}'.format(dt.year, dt.month)
@@ -274,9 +249,12 @@ def get_year_start_end(dt, first_day=None, last_day=None):
     return year_start, year_end
 
 
-def get_frequency(freq, data_frequency=None, supported_freqs=['D', 'T']):
+def get_frequency(freq, data_frequency=None, supported_freqs=['D', 'H', 'T']):
     """
-    Get the frequency parameters.
+    Takes an arbitrary candle size (e.g. 15T) and converts to the lowest
+    common denominator supported by the data bundles (e.g. 1T). The data
+    bundles only support 1T and 1D frequencies. If another frequency
+    is requested, Catalyst must request the underlying data and resample.
 
     Notes
     -----
@@ -331,14 +309,14 @@ def get_frequency(freq, data_frequency=None, supported_freqs=['D', 'T']):
         data_frequency = 'minute'
 
     elif unit.lower() == 'h':
+        data_frequency = 'minute'
+
         if 'H' in supported_freqs:
             unit = 'H'
             alias = '{}H'.format(candle_size)
-
         else:
             candle_size = candle_size * 60
             alias = '{}T'.format(candle_size)
-            data_frequency = 'minute'
 
     else:
         raise InvalidHistoryFrequencyAlias(freq=freq)
@@ -352,3 +330,33 @@ def from_ms_timestamp(ms):
 
 def get_epoch():
     return pd.to_datetime('1970-1-1', utc=True)
+
+
+def get_candles_number_from_minutes(unit, candle_size, minutes):
+    """
+    Get the number of bars needed for the given time interval
+    in minutes.
+
+    Notes
+    -----
+    Supports only "T", "D" and "H" units
+
+    Parameters
+    ----------
+    unit: str
+    candle_size : int
+    minutes: int
+
+    Returns
+    -------
+    int
+
+    """
+    if unit == "T":
+        res = (float(minutes) / candle_size)
+    elif unit == "H":
+        res = (minutes / 60.0) / candle_size
+    else:  # unit == "D"
+        res = (minutes / 1440.0) / candle_size
+
+    return int(math.ceil(res))

catalyst/exchange/utils/exchange_utils.py

@@ -1,19 +1,19 @@
 import hashlib
-import os
-import shutil
-
 import json
-import pandas as pd
+import os
 import pickle
-from catalyst.assets._assets import TradingPair
+import shutil
 from datetime import date, datetime
+
+import pandas as pd
+from catalyst.assets._assets import TradingPair
 from six import string_types
 from six.moves.urllib import request
 
-from catalyst.constants import EXCHANGE_CONFIG_URL
+from catalyst.constants import DATE_FORMAT, SYMBOLS_URL
+from catalyst.exchange.exchange_errors import ExchangeSymbolsNotFound
 from catalyst.exchange.utils.serialization_utils import ExchangeJSONEncoder, \
-    ExchangeJSONDecoder, ConfigJSONEncoder
+    ExchangeJSONDecoder
-from catalyst.utils.deprecate import deprecated
 from catalyst.utils.paths import data_root, ensure_directory, \
     last_modified_time
 
@@ -69,7 +69,7 @@ def is_blacklist(exchange_name, environ=None):
     return os.path.exists(filename)
 
 
-def get_exchange_config_filename(exchange_name, environ=None):
+def get_exchange_symbols_filename(exchange_name, is_local=False, environ=None):
     """
     The absolute path of the exchange's symbol.json file.
 
@@ -83,12 +83,12 @@ def get_exchange_config_filename(exchange_name, environ=None):
     str
 
     """
-    name = 'config.json'
+    name = 'symbols.json' if not is_local else 'symbols_local.json'
     exchange_folder = get_exchange_folder(exchange_name, environ)
     return os.path.join(exchange_folder, name)
 
 
-def download_exchange_config(exchange_name, filename, environ=None):
+def download_exchange_symbols(exchange_name, environ=None):
     """
     Downloads the exchange's symbols.json from the repository.
 
@@ -102,14 +102,15 @@ def download_exchange_config(exchange_name, filename, environ=None):
     str
 
     """
-    url = EXCHANGE_CONFIG_URL.format(exchange=exchange_name)
+    filename = get_exchange_symbols_filename(exchange_name)
-    request.urlretrieve(url=url, filename=filename)
+    url = SYMBOLS_URL.format(exchange=exchange_name)
+    response = request.urlretrieve(url=url, filename=filename)
+    return response
 
 
-@deprecated
+def get_exchange_symbols(exchange_name, is_local=False, environ=None):
-def get_exchange_config(exchange_name, filename=None, environ=None):
     """
-    The de-serialized content of the exchange's config.json.
+    The de-serialized content of the exchange's symbols.json.
 
     Parameters
     ----------
@@ -122,18 +123,17 @@ def get_exchange_config(exchange_name, filename=None, environ=None):
     Object
 
     """
-    if filename is None:
+    filename = get_exchange_symbols_filename(exchange_name, is_local)
-        filename = get_exchange_config_filename(exchange_name)
+
+    if not is_local and (not os.path.isfile(filename) or pd.Timedelta(
+            pd.Timestamp('now', tz='UTC') - last_modified_time(
+            filename)).days > 1):
+        try:
+            download_exchange_symbols(exchange_name, environ)
+        except Exception:
+            pass
 
     if os.path.isfile(filename):
-        now = pd.Timestamp.utcnow()
-        limit = pd.Timedelta('2H')
-        if pd.Timedelta(now - last_modified_time(filename)) > limit:
-            download_exchange_config(exchange_name, filename, environ)
-
-    else:
-        download_exchange_config(exchange_name, filename, environ)
-
         with open(filename) as data_file:
             try:
                 data = json.load(data_file, cls=ExchangeJSONDecoder)
@@ -141,29 +141,37 @@ def get_exchange_config(exchange_name, filename=None, environ=None):
 
             except ValueError:
                 return dict()
+    else:
+        raise ExchangeSymbolsNotFound(
+            exchange=exchange_name,
+            filename=filename
+        )
 
 
-def save_exchange_config(exchange_name, config, filename=None, environ=None):
+def save_exchange_symbols(exchange_name, assets, is_local=False, environ=None):
     """
-    Save assets into an exchange_config file.
+    Save assets into an exchange_symbols file.
 
     Parameters
     ----------
     exchange_name: str
-    config
+    assets: list[dict[str, object]]
+    is_local: bool
     environ
 
     Returns
     -------
 
     """
-    if filename is None:
+    asset_dicts = dict()
-        name = 'config.json'
+    for symbol in assets:
-        exchange_folder = get_exchange_folder(exchange_name, environ)
+        asset_dicts[symbol] = assets[symbol].to_dict()
-        filename = os.path.join(exchange_folder, name)
 
-    with open(filename, 'w+') as handle:
+    filename = get_exchange_symbols_filename(
-        json.dump(config, handle, indent=4, cls=ConfigJSONEncoder)
+        exchange_name, is_local, environ
+    )
+    with open(filename, 'wt') as handle:
+        json.dump(asset_dicts, handle, indent=4, default=symbols_serial)
 
 
 def get_symbols_string(assets):
@@ -504,6 +512,25 @@ def has_bundle(exchange_name, data_frequency, environ=None):
     return os.path.isdir(folder)
 
 
+def symbols_serial(obj):
+    """
+    JSON serializer for objects not serializable by default json code
+
+    Parameters
+    ----------
+    obj: Object
+
+    Returns
+    -------
+    str
+
+    """
+    if isinstance(obj, (datetime, date)):
+        return obj.floor('1D').strftime(DATE_FORMAT)
+
+    raise TypeError("Type %s not serializable" % type(obj))
+
+
 def perf_serial(obj):
     """
     JSON serializer for objects not serializable by default json code
@@ -593,12 +620,46 @@ def resample_history_df(df, freq, field, start_dt=None):
     return resampled_df
 
 
-def from_ms_timestamp(ms):
+def mixin_market_params(exchange_name, params, market):
-    return pd.to_datetime(ms, unit='ms', utc=True)
+    """
+    Applies a CCXT market dict to parameters of TradingPair init.
 
+    Parameters
+    ----------
+    params: dict[Object]
+    market: dict[Object]
 
-def get_epoch():
+    Returns
-    return pd.to_datetime('1970-1-1', utc=True)
+    -------
+
+    """
+    # TODO: make this more externalized / configurable
+    if 'lot' in market:
+        params['min_trade_size'] = market['lot']
+        params['lot'] = market['lot']
+
+    if exchange_name == 'bitfinex':
+        params['maker'] = 0.001
+        params['taker'] = 0.002
+
+    elif 'maker' in market and 'taker' in market and \
+            market['maker'] is not None and market['taker'] is not None:
+
+        params['maker'] = market['maker']
+        params['taker'] = market['taker']
+
+    else:
+        # TODO: default commission, make configurable
+        params['maker'] = 0.0015
+        params['taker'] = 0.0025
+
+    info = market['info'] if 'info' in market else None
+    if info:
+        if 'minimum_order_size' in info:
+            params['min_trade_size'] = float(info['minimum_order_size'])
+
+            if 'lot' not in params:
+                params['lot'] = params['min_trade_size']
 
 
 def group_assets_by_exchange(assets):
@@ -687,37 +748,6 @@ def get_candles_df(candles, field, freq, bar_count, end_dt):
         all_series[asset] = pd.Series(asset_df[field])
 
     df = pd.DataFrame(all_series)
-
     df.dropna(inplace=True)
 
     return df
-
-
-def get_trades_df(trades):
-    df = pd.DataFrame(trades)
-    df.index = pd.to_datetime(df.pop('datetime'))
-    df.index = df.index.tz_localize('UTC')
-
-    return df
-
-
-def candles_from_trades(trades_df, freq):
-    """
-    Calculate OHLCV from candles.
-
-    Parameters
-    ----------
-    trades_df
-    freq
-
-    Returns
-    -------
-
-    """
-    df = trades_df['price'].resample(freq).ohlc()  # type: pd.DataFrame
-    df['volume'] = trades_df['amount'].resample(freq).sum()
-
-    df.dropna(axis=0, how='all', inplace=True)
-    df.sort_index(inplace=True, ascending=False)
-
-    return df

catalyst/exchange/utils/factory.py

@@ -4,9 +4,8 @@ from catalyst.constants import LOG_LEVEL
 from catalyst.exchange.ccxt.ccxt_exchange import CCXT
 from catalyst.exchange.exchange import Exchange
 from catalyst.exchange.exchange_errors import ExchangeAuthEmpty
-from catalyst.exchange.utils.ccxt_utils import scan_exchange_configs
 from catalyst.exchange.utils.exchange_utils import get_exchange_auth, \
-    get_exchange_folder
+    get_exchange_folder, is_blacklist
 from logbook import Logger
 
 log = Logger('factory', level=LOG_LEVEL)
@@ -14,12 +13,9 @@ exchange_cache = dict()
 
 
 def get_exchange(exchange_name, base_currency=None, must_authenticate=False,
-                 skip_init=False, auth_alias=None, config=None):
+                 skip_init=False, auth_alias=None):
     key = (exchange_name, base_currency)
     if key in exchange_cache:
-        if not skip_init:
-            exchange_cache[key].init()
-
         return exchange_cache[key]
 
     exchange_auth = get_exchange_auth(exchange_name, alias=auth_alias)
@@ -40,7 +36,6 @@ def get_exchange(exchange_name, base_currency=None, must_authenticate=False,
         password=exchange_auth['password'] if 'password'
                                               in exchange_auth.keys() else '',
         base_currency=base_currency,
-        config=config,
     )
     exchange_cache[key] = exchange
 
@@ -58,8 +53,8 @@ def get_exchanges(exchange_names):
     return exchanges
 
 
-def find_exchanges(features=None, history=None, skip_blacklist=True, path=None,
+def find_exchanges(features=None, skip_blacklist=True, is_authenticated=False,
-                   is_authenticated=False, base_currency=None):
+                   base_currency=None):
     """
     Find exchanges filtered by a list of feature.
 
@@ -77,33 +72,28 @@ def find_exchanges(features=None, history=None, skip_blacklist=True, path=None,
     list[Exchange]
 
     """
+    exchange_names = CCXT.find_exchanges(features, is_authenticated)
 
-    return list(
+    exchanges = []
-        scan_exchanges(
+    for exchange_name in exchange_names:
-            features,
+        if skip_blacklist and is_blacklist(exchange_name):
-            history,
-            skip_blacklist,
-            path,
-            is_authenticated,
-            base_currency
-        )
-    )
-
-
-def scan_exchanges(features=None, history=None, skip_blacklist=True, path=None,
-                   is_authenticated=False, base_currency=None):
-    for config in scan_exchange_configs(
-        features=features,
-        history=history,
-        is_authenticated=is_authenticated,
-        path=path,
-    ):
-        if skip_blacklist and (config is None or 'error' in config):
             continue
 
-        yield get_exchange(
+        exchange = get_exchange(
-            exchange_name=config['id'],
+            exchange_name=exchange_name,
             skip_init=True,
             base_currency=base_currency,
-            config=config,
         )
+
+        if features is not None:
+            if 'dailyBundle' in features \
+                    and not exchange.has_bundle('daily'):
+                continue
+
+            elif 'minuteBundle' in features \
+                    and not exchange.has_bundle('minute'):
+                continue
+
+        exchanges.append(exchange)
+
+    return exchanges

catalyst/exchange/utils/serialization_utils.py

@@ -3,48 +3,15 @@ import re
 from json import JSONEncoder
 
 import pandas as pd
+from catalyst.constants import DATE_TIME_FORMAT
 from six import string_types
 
-from datetime import date, datetime
-from catalyst.constants import DATE_TIME_FORMAT, DATE_FORMAT
-from catalyst.assets._assets import TradingPair
-
-
-class ConfigJSONEncoder(json.JSONEncoder):
-    def default(self, obj):
-        """
-        JSON serializer for objects not serializable by default json code
-
-        Parameters
-        ----------
-        obj: Object
-
-        Returns
-        -------
-        str
-
-        """
-        if isinstance(obj, (datetime, date)):
-            return obj.floor('1D').strftime(DATE_FORMAT)
-
-        elif isinstance(obj, TradingPair):
-            return obj.to_dict()
-
 
 class ExchangeJSONEncoder(json.JSONEncoder):
     def default(self, obj):
         if isinstance(obj, pd.Timestamp):
             return obj.strftime(DATE_TIME_FORMAT)
 
-        elif isinstance(obj, TradingPair):
-            asset = obj.to_dict()
-            asset['maker'] = round(asset['maker'], asset['decimals'])
-            asset['taker'] = round(asset['taker'], asset['decimals'])
-            asset['lot'] = round(asset['lot'], 4)
-            asset['min_trade_size'] = round(asset['min_trade_size'], 4)
-            asset['max_trade_size'] = round(asset['max_trade_size'], 4)
-            return asset
-
         # Let the base class default method raise the TypeError
         return JSONEncoder.default(self, obj)
 

catalyst/finance/trading.py

@@ -95,11 +95,24 @@ class TradingEnvironment(object):
         if not trading_calendar:
             trading_calendar = get_calendar("NYSE")
 
-        self.benchmark_returns, self.treasury_curves = load(
+        # todo: uncomment and add a well defined benchmark
-            trading_calendar.day,
+        # self.benchmark_returns, self.treasury_curves = load(
-            trading_calendar.schedule.index,
+        #     trading_calendar.day,
-            self.bm_symbol,
+        #     trading_calendar.schedule.index,
-        )
+        #     self.bm_symbol,
+        #     exchange=exchange,
+        # )
+
+        start_data = get_calendar('OPEN').first_trading_session
+        end_data = pd.Timestamp.utcnow()
+        treasure_cols = ['1month', '3month', '6month', '1year', '2year',
+                         '3year', '5year', '7year', '10year', '20year', '30year']
+        self.benchmark_returns = pd.DataFrame(data=0.001,
+                                              index=pd.date_range(start_data, end_data),
+                                              columns=['close'])
+        self.treasury_curves = pd.DataFrame(data=0.001,
+                                            index=pd.date_range(start_data, end_data),
+                                            columns=treasure_cols)
 
         self.exchange_tz = exchange_tz
 

catalyst/marketplace/contract_enigma_address.txt

@@ -1 +1 @@
-0x7fAec9aaE31BE428DeAAE1be8195dF609079Fd10
+0xf0ee6b27b759c9893ce4f094b49ad28fd15a23e4

catalyst/marketplace/contract_marketplace_address.txt

@@ -1 +1 @@
-0x3985f5de8fddf2e8f7705cd360b498bf35ebfbc4
+0xa64927358a82254be92eb1f1cb01de68d1787004

catalyst/marketplace/marketplace.py

@@ -69,7 +69,10 @@ class Marketplace:
                 contract_url.info().get_content_charset()).strip())
 
         abi_url = urllib.urlopen(MARKETPLACE_CONTRACT_ABI)
-        abi = json.load(abi_url)
+        abi_url = abi_url.read().decode(
+                abi_url.info().get_content_charset())
+
+        abi = json.loads(abi_url)
 
         self.mkt_contract = self.web3.eth.contract(
             self.mkt_contract_address,
@@ -83,7 +86,10 @@ class Marketplace:
                 contract_url.info().get_content_charset()).strip())
 
         abi_url = urllib.urlopen(ENIGMA_CONTRACT_ABI)
-        abi = json.load(abi_url)
+        abi_url = abi_url.read().decode(
+                abi_url.info().get_content_charset())
+
+        abi = json.loads(abi_url)
 
         self.eng_contract = self.web3.eth.contract(
             self.eng_contract_address,
@@ -126,9 +132,10 @@ class Marketplace:
         else:
             while True:
                 for i in range(0, len(self.addresses)):
-                    print('{}\t{}\t{}'.format(
+                    print('{}\t{}\t{}\t{}'.format(
                         i,
                         self.addresses[i]['pubAddr'],
+                        self.addresses[i]['wallet'].ljust(10),
                         self.addresses[i]['desc'])
                     )
                 address_i = int(input('Choose your address associated with '
@@ -145,7 +152,7 @@ class Marketplace:
 
     def sign_transaction(self, tx):
 
-        url = 'https://www.myetherwallet.com/#offline-transaction'
+        url = 'https://www.mycrypto.com/#offline-transaction'
         print('\nVisit {url} and enter the following parameters:\n\n'
               'From Address:\t\t{_from}\n'
               '\n\tClick the "Generate Information" button\n\n'
@@ -177,10 +184,12 @@ class Marketplace:
     def check_transaction(self, tx_hash):
 
         if 'ropsten' in ETH_REMOTE_NODE:
-            etherscan = 'https://ropsten.etherscan.io/tx/{}'.format(
+            etherscan = 'https://ropsten.etherscan.io/tx/'
-                tx_hash)
+        elif 'rinkeby' in ETH_REMOTE_NODE:
+            etherscan = 'https://rinkeby.etherscan.io/tx/'
         else:
-            etherscan = 'https://etherscan.io/tx/{}'.format(tx_hash)
+            etherscan = 'https://etherscan.io/tx/'
+        etherscan = '{}{}'.format(etherscan, tx_hash)
 
         print('\nYou can check the outcome of your transaction here:\n'
               '{}\n\n'.format(etherscan))
@@ -329,9 +338,6 @@ class Marketplace:
              'nonce': self.web3.eth.getTransactionCount(address)}
         )
 
-        if 'ropsten' in ETH_REMOTE_NODE:
-            tx['gas'] = min(int(tx['gas'] * 1.5), 4700000)
-
         signed_tx = self.sign_transaction(tx)
         try:
             tx_hash = '0x{}'.format(
@@ -371,9 +377,6 @@ class Marketplace:
             'from': address,
             'nonce': self.web3.eth.getTransactionCount(address)})
 
-        if 'ropsten' in ETH_REMOTE_NODE:
-            tx['gas'] = min(int(tx['gas'] * 1.5), 4700000)
-
         signed_tx = self.sign_transaction(tx)
 
         try:
@@ -434,10 +437,9 @@ class Marketplace:
             merge_bundles(zsource, ztarget)
 
         else:
+            shutil.rmtree(bundle_folder, ignore_errors=True)
             os.rename(tmp_bundle, bundle_folder)
 
-        pass
-
     def ingest(self, ds_name=None, start=None, end=None, force_download=False):
 
         if ds_name is None:
@@ -502,20 +504,29 @@ class Marketplace:
             key = self.addresses[address_i]['key']
             secret = self.addresses[address_i]['secret']
         else:
-            key, secret = get_key_secret(address)
+            key, secret = get_key_secret(address,
+                                         self.addresses[address_i]['wallet'])
 
         headers = get_signed_headers(ds_name, key, secret)
-        log.debug('Starting download of dataset for ingestion...')
+        log.info('Starting download of dataset for ingestion...')
         r = requests.post(
             '{}/marketplace/ingest'.format(AUTH_SERVER),
             headers=headers,
             stream=True,
         )
         if r.status_code == 200:
+            log.info('Dataset downloaded successfully. Processing dataset...')
             target_path = get_temp_bundles_folder()
             try:
                 decoder = MultipartDecoder.from_response(r)
+                # with maybe_show_progress(
+                #     iter(decoder.parts),
+                #     True,
+                #     label='Processing files') as part:
+                counter = 1
                 for part in decoder.parts:
+                    log.info("Processing file {} of {}".format(
+                        counter, len(decoder.parts)))
                     h = part.headers[b'Content-Disposition'].decode('utf-8')
                     # Extracting the filename from the header
                     name = re.search(r'filename="(.*)"', h).group(1)
@@ -529,6 +540,7 @@ class Marketplace:
                         f.write(part.content)
 
                     self.process_temp_bundle(ds_name, filename)
+                    counter += 1
 
             except NonMultipartContentTypeException:
                 response = r.json()
@@ -596,7 +608,6 @@ class Marketplace:
             folder = get_bundle_folder(ds_name, data_frequency)
 
         shutil.rmtree(folder)
-        pass
 
     def create_metadata(self, key, secret, ds_name, data_frequency, desc,
                         has_history=True, has_live=True):
@@ -632,7 +643,7 @@ class Marketplace:
     def register(self):
         while True:
             desc = input('Enter the name of the dataset to register: ')
-            dataset = desc.lower()
+            dataset = desc.lower().strip()
             provider_info = self.mkt_contract.functions.getDataProviderInfo(
                 Web3.toHex(dataset)
             ).call()
@@ -688,7 +699,8 @@ class Marketplace:
             key = self.addresses[address_i]['key']
             secret = self.addresses[address_i]['secret']
         else:
-            key, secret = get_key_secret(address)
+            key, secret = get_key_secret(address,
+                                         self.addresses[address_i]['wallet'])
 
         grains = to_grains(price)
 
@@ -701,9 +713,6 @@ class Marketplace:
              'nonce': self.web3.eth.getTransactionCount(address)}
         )
 
-        if 'ropsten' in ETH_REMOTE_NODE:
-            tx['gas'] = min(int(tx['gas'] * 1.5), 4700000)
-
         signed_tx = self.sign_transaction(tx)
 
         try:
@@ -772,18 +781,21 @@ class Marketplace:
             key = match['key']
             secret = match['secret']
         else:
-            key, secret = get_key_secret(provider_info[0])
+            key, secret = get_key_secret(provider_info[0], match['wallet'])
 
-        headers = get_signed_headers(dataset, key, secret)
         filenames = glob.glob(os.path.join(datadir, '*.csv'))
 
         if not filenames:
             raise MarketplaceNoCSVFiles(datadir=datadir)
 
         files = []
-        for file in filenames:
+        for idx, file in enumerate(filenames):
+            log.info('Uploading file {} of {}: {}'.format(
+                idx+1, len(filenames), file))
+            files = []
             files.append(('file', open(file, 'rb')))
 
+            headers = get_signed_headers(dataset, key, secret)
             r = requests.post('{}/marketplace/publish'.format(AUTH_SERVER),
                               files=files,
                               headers=headers)
@@ -796,4 +808,7 @@ class Marketplace:
                 raise MarketplaceHTTPRequest(request='upload file',
                                              error=r.json()['error'])
 
-        print('Dataset {} uploaded successfully.'.format(dataset))
+            log.info('File processed successfully.')
+
+        print('\nDataset {} uploaded and processed successfully.'.format(
+            dataset))

catalyst/marketplace/utils/auth_utils.py

@@ -1,5 +1,6 @@
 import hashlib
 import hmac
+import webbrowser
 
 import requests
 import time
@@ -9,10 +10,10 @@ from catalyst.marketplace.marketplace_errors import (
     MarketplaceEmptySignature)
 from catalyst.marketplace.utils.path_utils import (
     get_user_pubaddr, save_user_pubaddr)
-from catalyst.constants import AUTH_SERVER
+from catalyst.constants import AUTH_SERVER, SUPPORTED_WALLETS
 
 
-def get_key_secret(pubAddr, wallet='mew'):
+def get_key_secret(pubAddr, wallet):
     """
     Obtain a new key/secret pair from authentication server
 
@@ -42,14 +43,22 @@ def get_key_secret(pubAddr, wallet='mew'):
     auth_type, auth_info = header.split(None, 1)
     d = requests.utils.parse_dict_header(auth_info)
 
-    nonce = '0x{}'.format(d['nonce'])
+    nonce = 'Catalyst nonce: 0x{}'.format(d['nonce'])
+
+    if wallet in SUPPORTED_WALLETS:
+        url = 'https://www.mycrypto.com/signmsg.html'
 
-    if wallet == 'mew':
         print('\nObtaining a key/secret pair to streamline all future '
               'requests with the authentication server.\n'
-              'Visit https://www.myetherwallet.com/signmsg.html and sign the '
+              'Visit {url} and sign the '
-              'following message:\n{}'.format(nonce))
+              'following message (copy the entire line, without the '
-        signature = input('Copy and Paste the "sig" field from '
+              'line break at the end):\n\n{nonce}'.format(
+                url=url,
+                nonce=nonce))
+
+        webbrowser.open_new(url)
+
+        signature = input('\nCopy and Paste the "sig" field from '
                           'the signature here (without the double quotes, '
                           'only the HEX value):\n')
     else:
@@ -83,7 +92,8 @@ def get_key_secret(pubAddr, wallet='mew'):
             addresses = get_user_pubaddr()
 
             match = next((l for l in addresses if
-                          l['pubAddr'] == pubAddr), None)
+                          l['pubAddr'].lower() == pubAddr.lower()), None)
+
             match['key'] = response.json()['key']
             match['secret'] = response.json()['secret']
 
@@ -113,7 +123,7 @@ def get_signed_headers(ds_name, key, secret):
     -------
 
     """
-    nonce = str(int(time.time()))
+    nonce = str(int(time.time() * 1000))
 
     signature = hmac.new(
         secret.encode('utf-8'),

catalyst/marketplace/utils/path_utils.py

@@ -2,6 +2,7 @@ import os
 import json
 import tarfile
 
+from catalyst.constants import SUPPORTED_WALLETS
 from catalyst.utils.deprecate import deprecated
 from catalyst.utils.paths import data_root, ensure_directory
 from catalyst.marketplace.marketplace_errors import MarketplaceJSONError
@@ -131,17 +132,63 @@ def get_user_pubaddr(environ=None):
             try:
                 d = data[0]['pubAddr']
             except Exception as e:
-                return [data, ]
+                data = [data, ]
+
+            changed = False
+
+            for idx, d in enumerate(data):
+                try:
+                    if d['wallet'] not in SUPPORTED_WALLETS:
+                        data[idx]['wallet'] = _choose_wallet(
+                            d['pubAddr'], False)
+                        changed = True
+                except KeyError:
+                    data[idx]['wallet'] = _choose_wallet(
+                        d['pubAddr'], True)
+                    changed = True
+
+            if changed:
+                save_user_pubaddr(data)
+
             return data
+
     else:
         data = []
-        data.append(dict(pubAddr='', desc=''))
+        data.append(dict(pubAddr='', desc='', wallet=''))
         with open(filename, 'w') as f:
             json.dump(data, f, sort_keys=False, indent=2,
                       separators=(',', ':'))
             return data
 
 
+def _choose_wallet(pubAddr, missing):
+    while True:
+        if missing:
+            print('\nYou need to specify a wallet for address '
+                  '{}.'.format(pubAddr))
+        else:
+            print('\nThe wallet specified for address {} is not '
+                  'supported.'.format(pubAddr))
+
+        print('Please choose among the following options:')
+        for idx, wallet in enumerate(SUPPORTED_WALLETS):
+            print('{}\t{}'.format(idx, wallet))
+
+        lw = len(SUPPORTED_WALLETS)-1
+        w = input('Choose a number between 0 and {}: '.format(
+                    lw))
+        try:
+            w = int(w)
+        except ValueError:
+            print('Enter a number between 0 and {}'.format(lw))
+        else:
+            if w not in range(0, lw+1):
+                print('Enter a number between 0 and '
+                      '{}'.format(lw))
+            else:
+                return SUPPORTED_WALLETS[w]
+
+
 def save_user_pubaddr(data, environ=None):
     """
     Saves the user's public addresses and their related metadata in

catalyst/support/issue_227.py

@@ -0,0 +1,49 @@
+import pytz
+from datetime import datetime
+from catalyst.api import symbol
+from catalyst.utils.run_algo import run_algorithm
+
+coin = 'btc'
+base_currency = 'usd'
+n_candles = 5
+
+
+def initialize(context):
+    context.symbol = symbol('%s_%s' % (coin, base_currency))
+
+
+def handle_data_polo_partial_candles(context, data):
+    history = data.history(symbol('btc_usdt'), ['volume'],
+                           bar_count=10,
+                           frequency='4H')
+    print('\nnow: %s\n%s' % (data.current_dt, history))
+    if not hasattr(context, 'i'):
+        context.i = 0
+    context.i += 1
+    if context.i > 5:
+        raise Exception('stop')
+
+
+live = False
+
+if live:
+    run_algorithm(initialize=lambda ctx: True,
+                  handle_data=handle_data_polo_partial_candles,
+                  exchange_name='poloniex',
+                  base_currency='usdt',
+                  algo_namespace='ns',
+                  live=True,
+                  data_frequency='minute',
+                  capital_base=3000)
+else:
+    run_algorithm(initialize=lambda ctx: True,
+                  handle_data=handle_data_polo_partial_candles,
+                  exchange_name='poloniex',
+                  base_currency='usdt',
+                  algo_namespace='ns',
+                  live=False,
+                  data_frequency='minute',
+                  capital_base=3000,
+                  start=datetime(2018, 2, 2, 0, 0, 0, 0, pytz.utc),
+                  end=datetime(2018, 2, 20, 0, 0, 0, 0, pytz.utc)
+                  )

catalyst/support/issue_236.py

@@ -1,8 +1,7 @@
 from catalyst.api import symbol
 from catalyst.utils.run_algo import run_algorithm
 
-coins = ['dash', 'btc', 'dash', 'etc', 'eth', 'ltc', 'nxt', 'rep', 'str',
+coins = ['dash', 'btc', 'dash', 'etc', 'eth', 'ltc', 'nxt', 'rep', 'str', 'xmr', 'xrp', 'zec']
-         'xmr', 'xrp', 'zec']
 symbols = None
 
 
@@ -14,13 +13,12 @@ def _handle_data(context, data):
     global symbols
     if symbols is None: symbols = [symbol(c + '_usdt') for c in coins]
 
-    print('getting history for: %s' % [s.symbol for s in symbols])
+    print'getting history for: %s' % [s.symbol for s in symbols]
     history = data.history(symbols,
                     ['close', 'volume'],
                     bar_count=1, # EXCEPTION, Change to 2
                     frequency='5T')
-    # print 'history: %s' % history.shape
+    #print 'history: %s' % history.shape
-
 
 run_algorithm(initialize=initialize,
               handle_data=_handle_data,

catalyst/support/issue_274.py

@@ -0,0 +1,35 @@
+import pytz
+from datetime import datetime
+from catalyst.api import symbol
+from catalyst.utils.run_algo import run_algorithm
+
+coin = 'btc'
+base_currency = 'usd'
+
+
+def initialize(context):
+    context.symbol = symbol('%s_%s' % (coin, base_currency))
+
+
+def handle_data_polo_partial_candles(context, data):
+    history = data.history(symbol('btc_usdt'), ['volume'],
+                           bar_count=10,
+                           frequency='1D')
+    print('\nnow: %s\n%s' % (data.current_dt, history))
+    if not hasattr(context, 'i'):
+        context.i = 0
+    context.i += 1
+    if context.i > 5:
+        raise Exception('stop')
+
+
+run_algorithm(initialize=lambda ctx: True,
+              handle_data=handle_data_polo_partial_candles,
+              exchange_name='poloniex',
+              base_currency='usdt',
+              algo_namespace='ns',
+              live=False,
+              data_frequency='minute',
+              capital_base=3000,
+              start=datetime(2018, 2, 2, 0, 0, 0, 0, pytz.utc),
+              end=datetime(2018, 2, 20, 0, 0, 0, 0, pytz.utc))

docs/source/install.rst

@@ -143,7 +143,7 @@ with the following steps:
 
    .. code-block:: bash
 
-      conda create --name catalyst python=2.7 scipy zlib
+      conda create --name catalyst python=3.6 scipy zlib
 
 3. Activate the environment:
 
@@ -314,6 +314,16 @@ Troubleshooting ``pip`` Install
 
       $ sudo apt-get install python-dev
 
+----
+
+**Issue**:
+   Missing TA_Lib
+
+**Solution**:
+   Follow `these instructions
+   <https://mrjbq7.github.io/ta-lib/install.html>`_ to install the TA_Lib Python wrapper
+   (and if needed, its underlying C library as well).
+
 .. _pipenv:
 
 Installing with ``pipenv``
@@ -552,6 +562,10 @@ If after following the instructions above, and going through the
 *Troubleshooting* sections, you still experience problems installing Catalyst,
 you can seek additional help through the following channels:
 
+- Join our `Catalyst Forum <https://catalyst.enigma.co/>`_, and browse a variety
+  of topics and conversations around common issues that others face when using
+  Catalyst, and how to resolve them. And join the conversation!
+
 - Join our `Discord community <https://discord.gg/SJK32GY>`_, and head over 
   the #catalyst_dev channel where many other users (as well as the project 
   developers) hang out, and can assist you with your particular issue. The 

docs/source/releases.rst

@@ -2,6 +2,93 @@
 Release Notes
 =============
 
+Version 0.5.8
+^^^^^^^^^^^^^
+**Release Date**: 2018-03-29
+
+Bug Fixes
+~~~~~~~~~
+- Fix Data Marketplace release on mainnet
+
+Version 0.5.7
+^^^^^^^^^^^^^
+**Release Date**: 2018-03-29
+
+Build
+~~~~~
+- Data Marketplace deployed on mainnet.
+- Added progress indicators for publishing data, and made the data publishing
+  synchronous to provide feedback to the publisher.
+
+Bug Fixes
+~~~~~~~~~
+- fixes in storing and loading the state :issue:`214`, 
+  :issue:`287`
+
+Version 0.5.6
+^^^^^^^^^^^^^
+**Release Date**: 2018-03-22
+
+Build
+~~~~~
+- Data Marketplace: ensures compatibility across wallets, now fully supporting 
+  ``ledger``, ``trezor``, ``keystore``, ``private key``. Partial support for 
+  ``metamask`` (includes sign_msg, but not sign_tx). Current support for 
+  ``Digital Bitbox`` is unknown, but believed to be supported.
+- Data Marketplace: Switched online provider from MyEtherWallet to MyCrypto.
+- Data Marketplace: Added progress indicator for data ingestion.
+
+Bug Fixes
+~~~~~~~~~
+- Changed benchmark to be constant, so it doesn't ingest data at all. Temporary
+  fix for :issue:`271`, :issue:`285`
+
+Version 0.5.5
+^^^^^^^^^^^^^
+**Release Date**: 2018-03-19
+
+Bug Fixes
+~~~~~~~~~
+- Fixed an issue with the data history in daily frequency :issue:`274`
+- Fix hourly frequency issues :issue:`227` and :issue:`114`
+
+Version 0.5.4
+^^^^^^^^^^^^^
+**Release Date**: 2018-03-14
+
+Build
+~~~~~
+- Switched Data Marketplace from Ropstein testnet to Rinkeby testnet after 
+  incorporating changes resulting from the marketplace contract audit
+- Several usability improvements of the Data Marketplace that make the 
+  `--dataset` parameter optional. If it is not included in the command line, 
+  will list available datasets, and let you choose interactively.
+
+Bug Fixes
+~~~~~~~~~
+- Fix Binance requirement of symbol to be included in the cancelled order 
+  :issue:`204`
+- Fix `notenoughcasherror` when an open order is filled minutes later 
+  :issue:`237`
+- Properly handle of empty candles received from exchanges :issue:`236`
+- Added a function to reduce open orders amount from calculated target/amount 
+  for target orders :issue:`243`
+- Fix missing file in live trading mode on date change :issue:`252`, 
+  :issue:`253`
+- Upgraded Data Marketplace to Web3==4.0.0b11, which was breaking some 
+  functionality from prior version 4.0.0b7 :issue:`257`
+- Always request more data to avoid empty bars and always give the exact bar
+  number :issue:`260`
+
+Documentation
+~~~~~~~~~~~~~
+- PyCharm documentation :issue:`195`
+- Added TA-Lib troubleshooting instructions
+- Added instructions on how to create a Conda environment for Python 3.6, and
+  updated Visual C++ instructions for Windows and Python 3
+- Linking example algorithms in the documentation to their sources
+
+
 Version 0.5.3
 ^^^^^^^^^^^^^
 **Release Date**: 2018-02-09

etc/python2.7-environment.yml

@@ -22,7 +22,7 @@ dependencies:
   - bcolz==0.12.1
   - bottleneck==1.2.1
   - chardet==3.0.4
-  - ccxt==1.11.22
+  - ccxt==1.10.1094
 # The Enigma Data Marketplace requires Python3 because it depends on
 # web3, which requires Python3, as building its dependencies breaks in Python2
 #  - web3==4.0.0b7

etc/python3.6-environment.yml

@@ -31,7 +31,7 @@ dependencies:
   - botocore==1.8.41
   - bottleneck==1.2.1
   - cchardet==2.1.1
-  - ccxt==1.11.22
+  - ccxt==1.10.1102
   - chardet==3.0.4
   - click==6.7
   - contextlib2==0.5.5

etc/requirements.txt

@@ -81,7 +81,7 @@ empyrical==0.2.1
 tables==3.3.0
 
 #Catalyst dependencies
-ccxt==1.11.22
+ccxt==1.10.1094
 boto3==1.4.8
 redo==1.6
 web3==4.0.0b11; python_version > '3.4'

tests/exchange/test_bundle.py

@@ -14,8 +14,7 @@ from catalyst.exchange.utils.bundle_utils import get_bcolz_chunk, \
 from catalyst.exchange.utils.datetime_utils import get_start_dt
 from catalyst.exchange.utils.exchange_utils import get_exchange_folder
 from catalyst.exchange.utils.factory import get_exchange
-from catalyst.exchange.utils.stats_utils import df_to_string, \
+from catalyst.exchange.utils.stats_utils import df_to_string
-    set_print_settings
 from catalyst.utils.paths import ensure_directory
 
 log = getLogger('test_exchange_bundle')
@@ -46,9 +45,9 @@ class TestExchangeBundle:
         exchange_name = 'binance'
 
         exchange = get_exchange(exchange_name)
-        exchange_bundle = ExchangeBundle(exchange_name)
+        exchange_bundle = ExchangeBundle(exchange)
         assets = [
-            exchange.get_asset('bch_eth')
+            exchange.get_asset('eth_btc')
         ]
 
         start = pd.to_datetime('2018-03-01', utc=True)
@@ -62,8 +61,7 @@ class TestExchangeBundle:
             exclude_symbols=None,
             start=start,
             end=end,
-            show_progress=False,
+            show_progress=True
-            show_breakdown=False
         )
 
         reader = exchange_bundle.get_reader(data_frequency)
@@ -74,15 +72,9 @@ class TestExchangeBundle:
                 start_dt=start,
                 end_dt=end
             )
-            periods = exchange_bundle.get_calendar_periods_range(
+            print('found {} rows for {} ingestion\n{}'.format(
-                start, end, data_frequency
+                len(arrays[0]), asset.symbol, arrays[0])
             )
-
-            dx = get_df_from_arrays(arrays[0], periods)
-            set_print_settings()
-            print('found {} rows for last ingestion:\n{}\n{}'.format(
-                len(dx), dx.head(10), dx.tail(10)
-            ))
         pass
 
     def test_ingest_minute_all(self):
@@ -230,14 +222,9 @@ class TestExchangeBundle:
                 start_dt=start,
                 end_dt=end
             )
-            periods = exchange_bundle.get_calendar_periods_range(
+            print('found {} rows for {} ingestion\n{}'.format(
-                start, end, data_frequency
+                len(arrays[0]), asset.symbol, arrays[0])
             )
-
-            dx = get_df_from_arrays(arrays, periods)
-            print('found {} rows for last ingestion'.format(
-                len(dx)
-            ))
         pass
 
     def test_daily_data_to_minute_table(self):
@@ -303,21 +290,16 @@ class TestExchangeBundle:
         for asset in assets:
             sid = asset.sid
 
-            arrays = reader.load_raw_arrays(
+            daily_values = reader.load_raw_arrays(
                 fields=['open', 'high', 'low', 'close', 'volume'],
                 start_dt=start,
                 end_dt=end,
                 sids=[sid],
             )
 
-            periods = exchange_bundle.get_calendar_periods_range(
-                start, end, data_frequency
-            )
-
-            dx = get_df_from_arrays(arrays, periods)
             print('found {} rows for last ingestion'.format(
-                len(dx)
+                len(daily_values[0]))
-            ))
+            )
         pass
 
     def test_minute_bundle(self):

tests/exchange/test_ccxt.py

@@ -5,8 +5,7 @@ from catalyst.exchange.utils.stats_utils import set_print_settings
 from .base import BaseExchangeTestCase
 from catalyst.exchange.ccxt.ccxt_exchange import CCXT
 from catalyst.exchange.exchange_execution import ExchangeLimitOrder
-from catalyst.exchange.utils.exchange_utils import get_exchange_auth, \
+from catalyst.exchange.utils.exchange_utils import get_exchange_auth
-    get_trades_df, candles_from_trades
 from catalyst.finance.order import Order
 
 log = Logger('test_ccxt')
@@ -15,13 +14,12 @@ log = Logger('test_ccxt')
 class TestCCXT(BaseExchangeTestCase):
     @classmethod
     def setup(self):
-        exchange_name = 'binance'
+        exchange_name = 'bittrex'
         auth = get_exchange_auth(exchange_name)
         self.exchange = CCXT(
             exchange_name=exchange_name,
             key=auth['key'],
             secret=auth['secret'],
-            password=None,
             base_currency='usdt',
         )
         self.exchange.init()
@@ -60,9 +58,9 @@ class TestCCXT(BaseExchangeTestCase):
         log.info('retrieving candles')
         candles = self.exchange.get_candles(
             freq='1T',
-            assets=[self.exchange.get_asset('eng_eth')],
+            assets=[self.exchange.get_asset('eth_btc')],
             bar_count=200,
-            start_dt=pd.to_datetime('2017-09-01', utc=True),
+            # start_dt=pd.to_datetime('2017-09-01', utc=True),
         )
 
         for asset in candles:
@@ -92,37 +90,6 @@ class TestCCXT(BaseExchangeTestCase):
         assert trades
         pass
 
-    def test_validate_volume(self):
-        asset = self.exchange.get_asset('eng_eth')
-        candles = self.exchange.get_candles(
-            freq='1T',
-            assets=[asset],
-            bar_count=10,
-        )
-        df = pd.DataFrame(candles[asset])
-        df.set_index('last_traded', drop=True, inplace=True)
-
-        df.drop_duplicates()
-        df.sort_index(inplace=True, ascending=False)
-        assert candles
-
-        start_dt = df.index[-1]
-        trades = self.exchange.get_trades(
-            asset, start_dt=start_dt, my_trades=False
-        )
-        assert trades
-
-        trades_df = get_trades_df(trades)
-        df2 = candles_from_trades(trades_df, '1T')
-
-        set_print_settings()
-        log.info(
-            'comparing candles / resampled trades:\n{}\n{}'.format(
-                df, df2
-            )
-        )
-        pass
-
     def test_get_executed_order(self):
         log.info('retrieving executed order')
         asset = self.exchange.get_asset('eng_eth')

tests/exchange/test_config.py

@@ -1,8 +0,0 @@
-from catalyst.exchange.utils.factory import get_exchange
-
-
-class TestConfig:
-    def test_create_config(self):
-        exchange = get_exchange('binance', skip_init=True)
-        config = exchange.create_exchange_config()
-        pass

tests/exchange/test_data_portal.py

@@ -9,7 +9,7 @@ from catalyst.exchange.exchange_data_portal import (
 )
 from catalyst.exchange.utils.exchange_utils import get_common_assets
 from catalyst.exchange.utils.factory import get_exchanges
-from .test_utils import rnd_history_date_days, rnd_bar_count
+from test_utils import rnd_history_date_days, rnd_bar_count
 
 log = Logger('test_bitfinex')
 

tests/exchange/test_suites/test_suite_bundle.py

@@ -197,7 +197,6 @@ class TestSuiteBundle:
         #     population=exchange_population,
         #     features=[bundle],
         # )  # Type: list[Exchange]
-        # TODO: currently focusing on Binance, try other exchanges
         exchanges = [get_exchange('poloniex', skip_init=True)]
 
         data_portal = TestSuiteBundle.get_data_portal(exchanges)
@@ -205,20 +204,17 @@ class TestSuiteBundle:
             exchange.init()
 
             frequencies = exchange.get_candle_frequencies(data_frequency)
-            # freq = random.sample(frequencies, 1)[0]
+            freq = random.sample(frequencies, 1)[0]
-            freq = '5T'
             rnd = random.SystemRandom()
             # field = rnd.choice(['open', 'high', 'low', 'close', 'volume'])
-            field = rnd.choice(['close'])
+            field = rnd.choice(['volume'])
 
-            # bar_count = random.randint(3, 6)
+            bar_count = random.randint(3, 6)
-            bar_count = 5
 
-            # assets = select_random_assets(
+            assets = select_random_assets(
-            #     exchange.assets, asset_population
+                exchange.assets, asset_population
-            # )
+            )
-            assets = [exchange.get_asset('bch_eth')]
+            end_dt = None
-            end_dt = pd.to_datetime('2018-03-01', utc=True)
             for asset in assets:
                 attribute = 'end_{}'.format(data_frequency)
                 asset_end_dt = getattr(asset, attribute)

tests/exchange/test_suites/test_suite_exchange.py

@@ -5,28 +5,63 @@ from logging import Logger, WARNING
 from time import sleep
 
 import pandas as pd
+from catalyst.assets._assets import TradingPair
 from logbook import TestHandler
 
-from catalyst.assets._assets import TradingPair
+from catalyst.exchange.exchange_errors import ExchangeRequestError
 from catalyst.exchange.exchange_execution import ExchangeLimitOrder
 from catalyst.exchange.utils.exchange_utils import get_exchange_folder
-from catalyst.exchange.utils.factory import get_exchanges, get_exchange
 from catalyst.exchange.utils.test_utils import select_random_exchanges, \
-    select_random_assets
+    handle_exchange_error, select_random_assets
 from catalyst.testing import ZiplineTestCase
 from catalyst.testing.fixtures import WithLogger
+from catalyst.exchange.utils.factory import get_exchanges, get_exchange
 
 log = Logger('TestSuiteExchange')
 
 
 class TestSuiteExchange(WithLogger, ZiplineTestCase):
+    def _test_markets_exchange(self, exchange, attempts=0):
+        assets = None
+        try:
+            exchange.init()
+
+            # Verify that the assets and markets are populated
+            if not exchange.markets:
+                raise ValueError(
+                    'no markets found'
+                )
+            if not exchange.assets:
+                raise ValueError(
+                    'no assets derived from markets'
+                )
+            assets = exchange.assets
+
+        except ExchangeRequestError as e:
+            sleep(5)
+
+            if attempts > 5:
+                handle_exchange_error(exchange, e)
+
+            else:
+                print(
+                    're-trying an exchange request {} {}'.format(
+                        exchange.name, attempts
+                    )
+                )
+                self._test_markets_exchange(exchange, attempts + 1)
+
+        except Exception as e:
+            handle_exchange_error(exchange, e)
+
+        return assets
+
     def test_markets(self):
         population = 3
         results = dict()
 
         exchanges = select_random_exchanges(population)  # Type: list[Exchange]
         for exchange in exchanges:
-            exchange.init()
             assets = self._test_markets_exchange(exchange)
 
             if assets is not None: