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add lru

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wangwenxi.handsome
2021-08-26 16:26:26 +00:00
committed by you-n-g
parent 25f54ddaeb
commit 7ee4a207bc
1 changed files with 1 additions and 0 deletions
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qlib/backtest/high_performance_ds.py
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@@ -158,6 +158,7 @@ class CN1min_NumpyQuote(BaseQuote):
def get_all_stock(self): def get_all_stock(self):
return self.data.keys() return self.data.keys()
@lru_cache(maxsize=512)
def get_data(self, stock_id, start_time, end_time, fields=None, method=None): def get_data(self, stock_id, start_time, end_time, fields=None, method=None):
if fields is None and method is not None: if fields is None and method is not None:
raise ValueError(f"method must be None when fields is None") raise ValueError(f"method must be None when fields is None")