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Delete redundant copy() code to speed up (#1732)

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Delete redundant copy() code to speed up

Co-authored-by: Linlang Lv (iSoftStone Information) <v-lvlinlang@microsoft.com>
This commit is contained in:
playfund
2024-05-17 18:45:07 +08:00
committed by GitHub
parent 6ed83f7c04
commit 2ae4be426a
1 changed files with 0 additions and 1 deletions
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qlib/data/data.py
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@@ -536,7 +536,6 @@ class DatasetProvider(abc.ABC):
""" """
if len(fields) == 0: if len(fields) == 0:
raise ValueError("fields cannot be empty") raise ValueError("fields cannot be empty")
fields = fields.copy()
column_names = [str(f) for f in fields] column_names = [str(f) for f in fields]
return column_names return column_names