아미(아름다운미소)

import polars as pldef process_dataframe_optimized_pl(dict_df_types: dict, df: pl.DataFrame) -> pl.DataFrame: def handle_column(col: str, dtype: str) -> pl.Expr: try: expr = pl.col(col) if dtype == 'int': return expr.cast(pl.Int32).fill_null(0).alias(col) elif dtype == 'float': return expr.cast(pl.Float32).fill_null(0).alia..

import pandas as pddef convert_object_columns_to_str(df: pd.DataFrame) -> pd.DataFrame: """ Pandas DataFrame에서 object 타입 컬럼을 모두 문자열(str)로 변환합니다. Parameters: df (pd.DataFrame): 변환할 DataFrame Returns: pd.DataFrame: 문자열 컬럼이 str 타입으로 변환된 DataFrame """ df = df.copy() for col in df.select_dtypes(include='object').columns: df[col] = df[col].astype(str) ..