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fix: resolve ambiguous boolean value error in pandas Series operations #659

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Merged
ulleo merged 1 commit into from
Dec 23, 2025
Merged

fix: resolve ambiguous boolean value error in pandas Series operations #659

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12 changes: 5 additions & 7 deletions backend/common/utils/data_format.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,14 +8,12 @@ class DataFormat:
def safe_convert_to_string(df):
df_copy = df.copy()

def format_value(x):
if pd.isna(x):
return ""

return "\u200b" + str(x)

for col in df_copy.columns:
df_copy[col] = df_copy[col].apply(format_value)
# 使用map避免ambiguous truth value问题
df_copy[col] = df_copy[col].map(
# 关键：在数字字符串前添加零宽空格，阻止pandas的自动格式化
lambda x: "" if pd.isna(x) else "\u200b" + str(x)
)

return df_copy

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