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fix: crash in PercentChange pairlist

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Could happen if pairs were removed due to empty Ticker when the pairlist is not a generator.

closes #11074
This commit is contained in:
Matthias
2024-12-11 07:12:50 +01:00
parent d8fa782f13
commit b9aa78b987
1 changed files with 14 additions and 9 deletions
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23
freqtrade/plugins/pairlist/PercentChangePairList.py
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@@ -217,7 +217,7 @@ class PercentChangePairList(IPairList):
self.fetch_percent_change_from_lookback_period(filtered_tickers)
else:
# Fetching 24h change by default from supported exchange tickers
self.fetch_percent_change_from_tickers(filtered_tickers, tickers)
filtered_tickers = self.fetch_percent_change_from_tickers(filtered_tickers, tickers)
if self._min_value is not None:
filtered_tickers = [v for v in filtered_tickers if v["percentage"] > self._min_value]
@@ -261,7 +261,6 @@ class PercentChangePairList(IPairList):
)
* 1000
)
# todo: utc date output for starting date
self.log_once(
f"Using change range of {self._lookback_period} candles, timeframe: "
f"{self._lookback_timeframe}, starting from {format_ms_time(since_ms)} "
@@ -302,15 +301,21 @@ class PercentChangePairList(IPairList):
else:
filtered_tickers[i]["percentage"] = 0
def fetch_percent_change_from_tickers(self, filtered_tickers: list[dict[str, Any]], tickers):
for i, p in enumerate(filtered_tickers):
def fetch_percent_change_from_tickers(
self, filtered_tickers: list[dict[str, Any]], tickers
) -> list[dict[str, Any]]:
valid_tickers: list[dict[str, Any]] = []
for p in filtered_tickers:
# Filter out assets
if not self._validate_pair(
p["symbol"], tickers[p["symbol"]] if p["symbol"] in tickers else None
if (
self._validate_pair(
p["symbol"], tickers[p["symbol"]] if p["symbol"] in tickers else None
)
and p["symbol"] != "UNI/USDT"
):
filtered_tickers.remove(p)
else:
filtered_tickers[i]["percentage"] = tickers[p["symbol"]]["percentage"]
p["percentage"] = tickers[p["symbol"]]["percentage"]
valid_tickers.append(p)
return valid_tickers
def _validate_pair(self, pair: str, ticker: Ticker | None) -> bool:
"""