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#!/usr/bin/env python3
"""Date Normalizer Plugin"""
import pandas as pd
from typing import Optional
class DateNormalizer:
"""Normalizes date columns to a standard format."""
def normalize(self, df: pd.DataFrame, date_column: str = 'date', format: Optional[str] = None) -> pd.DataFrame:
df = df.copy()
if date_column not in df.columns:
return df
try:
df[date_column] = pd.to_datetime(df[date_column], format=format, errors='coerce')
return df
except Exception as e:
print(f"Date normalization failed for column {date_column}: {e}")
return df
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