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Add checks for parameters of PriceFilter

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This commit is contained in:
hroff-1902 2020-07-22 22:21:30 +03:00
parent a1e292f56a
commit c78199d3d9
1 changed files with 10 additions and 3 deletions
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13
freqtrade/pairlist/PriceFilter.py
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@ -4,6 +4,7 @@ Price pair list filter
import logging import logging
from typing import Any, Dict from typing import Any, Dict
from freqtrade.exceptions import OperationalException
from freqtrade.pairlist.IPairList import IPairList from freqtrade.pairlist.IPairList import IPairList
@ -18,11 +19,17 @@ class PriceFilter(IPairList):
super().__init__(exchange, pairlistmanager, config, pairlistconfig, pairlist_pos) super().__init__(exchange, pairlistmanager, config, pairlistconfig, pairlist_pos)
self._low_price_ratio = pairlistconfig.get('low_price_ratio', 0) self._low_price_ratio = pairlistconfig.get('low_price_ratio', 0)
if self._low_price_ratio < 0:
raise OperationalException("PriceFilter requires low_price_ratio be >= 0")
self._min_price = pairlistconfig.get('min_price', 0) self._min_price = pairlistconfig.get('min_price', 0)
if self._min_price < 0:
raise OperationalException("PriceFilter requires min_price be >= 0")
self._max_price = pairlistconfig.get('max_price', 0) self._max_price = pairlistconfig.get('max_price', 0)
self._enabled = ((self._low_price_ratio != 0) or if self._max_price < 0:
(self._min_price != 0) or raise OperationalException("PriceFilter requires max_price be >= 0")
(self._max_price != 0)) self._enabled = ((self._low_price_ratio > 0) or
(self._min_price > 0) or
(self._max_price > 0))
@property @property
def needstickers(self) -> bool: def needstickers(self) -> bool: