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fix: work around to_json pandas deprecation

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Matthias
2026-05-11 17:45:35 +02:00
parent e5d4fd6b62
commit 523216a39c
2 changed files with 8 additions and 2 deletions
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freqtrade/misc.py
+6
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@@ -214,6 +214,12 @@ def dataframe_to_json(dataframe: pd.DataFrame) -> str:
:param dataframe: A pandas DataFrame :param dataframe: A pandas DataFrame
:returns: A JSON string of the pandas DataFrame :returns: A JSON string of the pandas DataFrame
""" """
date_columns = dataframe.select_dtypes(include=["datetime", "datetime64", "datetimetz"])
# Explicit conversion to ms
# This used to be part of to_json, but was deprecated in pandas 3
for date_column in date_columns:
dataframe[date_column] = date_columns[date_column].dt.as_unit("ms").astype("int64")
return dataframe.to_json(orient="split") return dataframe.to_json(orient="split")
tests/test_misc.py
+2 -2
View File
@@ -230,7 +230,7 @@ def test_deep_merge_dicts():
def test_dataframe_json(ohlcv_history): def test_dataframe_json(ohlcv_history):
from pandas.testing import assert_frame_equal from pandas.testing import assert_frame_equal
json = dataframe_to_json(ohlcv_history) json = dataframe_to_json(ohlcv_history.copy())
dataframe = json_to_dataframe(json) dataframe = json_to_dataframe(json)
assert list(ohlcv_history.columns) == list(dataframe.columns) assert list(ohlcv_history.columns) == list(dataframe.columns)
@@ -238,6 +238,6 @@ def test_dataframe_json(ohlcv_history):
assert_frame_equal(ohlcv_history, dataframe) assert_frame_equal(ohlcv_history, dataframe)
ohlcv_history.at[1, "date"] = pd.NaT ohlcv_history.at[1, "date"] = pd.NaT
json = dataframe_to_json(ohlcv_history) json = dataframe_to_json(ohlcv_history.copy())
dataframe = json_to_dataframe(json) dataframe = json_to_dataframe(json)