92 lines
2.7 KiB
Python
92 lines
2.7 KiB
Python
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"""
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Static List provider
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Provides lists as configured in config.json
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"""
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import logging
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from abc import ABC, abstractmethod
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from typing import List
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logger = logging.getLogger(__name__)
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class IPairList(ABC):
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def __init__(self, freqtrade, config: dict) -> None:
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self._freqtrade = freqtrade
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self._config = config
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self._whitelist = self._config['exchange']['pair_whitelist']
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self._blacklist = self._config['exchange'].get('pair_blacklist', [])
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@property
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def name(self) -> str:
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"""
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Gets name of the class
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-> no need to overwrite in subclasses
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"""
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return self.__class__.__name__
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@property
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def whitelist(self) -> List[str]:
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"""
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Has the current whitelist
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-> no need to overwrite in subclasses
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"""
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return self._whitelist
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@property
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def blacklist(self) -> List[str]:
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"""
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Has the current blacklist
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-> no need to overwrite in subclasses
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"""
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return self._blacklist
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@abstractmethod
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def short_desc(self) -> str:
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"""
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Short whitelist method description - used for startup-messages
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-> Please overwrite in subclasses
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"""
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@abstractmethod
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def refresh_pairlist(self) -> None:
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"""
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Refreshes pairlists and assigns them to self._whitelist and self._blacklist respectively
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-> Please overwrite in subclasses
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"""
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def _validate_whitelist(self, whitelist: List[str]) -> List[str]:
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"""
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Check available markets and remove pair from whitelist if necessary
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:param whitelist: the sorted list (based on BaseVolume) of pairs the user might want to
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trade
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:return: the list of pairs the user wants to trade without the one unavailable or
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black_listed
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"""
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sanitized_whitelist = whitelist
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markets = self._freqtrade.exchange.get_markets()
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# Filter to markets in stake currency
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markets = [m for m in markets if m['quote'] == self._config['stake_currency']]
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known_pairs = set()
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for market in markets:
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pair = market['symbol']
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# pair is not int the generated dynamic market, or in the blacklist ... ignore it
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if pair not in whitelist or pair in self.blacklist:
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continue
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# else the pair is valid
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known_pairs.add(pair)
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# Market is not active
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if not market['active']:
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sanitized_whitelist.remove(pair)
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logger.info(
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'Ignoring %s from whitelist. Market is not active.',
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pair
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)
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# We need to remove pairs that are unknown
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return [x for x in sanitized_whitelist if x in known_pairs]
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