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Remove length check in favour of truthiness of the object

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Signed-off-by: shubhendra <withshubh@gmail.com>
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shubhendra
2021-03-06 13:01:01 +05:30
parent f277a66582
commit 07eef18337
1 changed files with 1 additions and 1 deletions
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qlib/contrib/backtest/exchange.py
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@@ -93,7 +93,7 @@ class Exchange:
self.limit_threshold = limit_threshold self.limit_threshold = limit_threshold
# TODO: the quote, trade_dates, codes are not necessray. # TODO: the quote, trade_dates, codes are not necessray.
# It is just for performance consideration. # It is just for performance consideration.
if trade_dates is not None and len(trade_dates): if trade_dates is not None and trade_dates:
start_date, end_date = trade_dates[0], trade_dates[-1] start_date, end_date = trade_dates[0], trade_dates[-1]
else: else:
self.logger.warning("trade_dates have not been assigned, all dates will be loaded") self.logger.warning("trade_dates have not been assigned, all dates will be loaded")