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Fix parse_dates parameter in CSV loaders #3132

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merged 1 commit into from
Oct 31, 2025
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Fix parse_dates parameter in CSV loaders #3132

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6 changes: 4 additions & 2 deletions nautilus_trader/persistence/loaders.py
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,8 @@ def load(
parse_dates=parse_dates,
**kwargs,
)
df.index = pd.to_datetime(df.index, format=datetime_format)
if parse_dates:
df.index = pd.to_datetime(df.index, format=datetime_format)
return df


Expand Down Expand Up @@ -107,7 +108,8 @@ def load(
parse_dates=parse_dates,
**kwargs,
)
df.index = pd.to_datetime(df.index, format="mixed")
if parse_dates:
df.index = pd.to_datetime(df.index, format="mixed")
return df


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