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87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
"""
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Static Pair List provider
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Provides pair white list as it configured in config
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"""
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import logging
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from copy import deepcopy
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from typing import Dict, List
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from freqtrade.exchange.exchange_types import Tickers
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from freqtrade.plugins.pairlist.IPairList import IPairList, PairlistParameter, SupportsBacktesting
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logger = logging.getLogger(__name__)
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class StaticPairList(IPairList):
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is_pairlist_generator = True
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supports_backtesting = SupportsBacktesting.YES
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def __init__(self, *args, **kwargs) -> None:
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super().__init__(*args, **kwargs)
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self._allow_inactive = self._pairlistconfig.get("allow_inactive", False)
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@property
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def needstickers(self) -> bool:
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"""
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Boolean property defining if tickers are necessary.
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If no Pairlist requires tickers, an empty Dict is passed
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as tickers argument to filter_pairlist
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"""
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return False
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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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return f"{self.name}"
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@staticmethod
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def description() -> str:
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return "Use pairlist as configured in config."
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@staticmethod
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def available_parameters() -> Dict[str, PairlistParameter]:
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return {
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"allow_inactive": {
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"type": "boolean",
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"default": False,
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"description": "Allow inactive pairs",
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"help": "Allow inactive pairs to be in the whitelist.",
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},
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}
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def gen_pairlist(self, tickers: Tickers) -> List[str]:
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"""
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Generate the pairlist
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:param tickers: Tickers (from exchange.get_tickers). May be cached.
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:return: List of pairs
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"""
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wl = self.verify_whitelist(
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self._config["exchange"]["pair_whitelist"], logger.info, keep_invalid=True
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)
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if self._allow_inactive:
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return wl
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else:
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# Avoid implicit filtering of "verify_whitelist" to keep
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# proper warnings in the log
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return self._whitelist_for_active_markets(wl)
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def filter_pairlist(self, pairlist: List[str], tickers: Tickers) -> List[str]:
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"""
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Filters and sorts pairlist and returns the whitelist again.
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Called on each bot iteration - please use internal caching if necessary
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:param pairlist: pairlist to filter or sort
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:param tickers: Tickers (from exchange.get_tickers). May be cached.
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:return: new whitelist
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"""
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pairlist_ = deepcopy(pairlist)
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for pair in self._config["exchange"]["pair_whitelist"]:
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if pair not in pairlist_:
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pairlist_.append(pair)
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return pairlist_
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