如何格式化导入的csv文件

import csv

try:
    with open('path/to/file.csv', 'r', encoding='utf-8') as file:
        reader = csv.reader(file)
        for row in reader:
            print(row)
except FileNotFoundError:
    print("文件路径错误")
except UnicodeDecodeError:
    print("文件编码错误")
except csv.Error as e:
    print(f"CSV文件格式错误: {e}")

import csv
from datetime import datetime

def parse_date(date_str):
    try:
        return datetime.strptime(date_str, '%Y-%m-%d')
    except ValueError:
        return None

with open('path/to/file.csv', 'r', encoding='utf-8') as file:
    reader = csv.DictReader(file)
    for row in reader:
        row['date'] = parse_date(row['date'])
        print(row)

import csv

def process_large_csv(file_path):
    with open(file_path, 'r', encoding='utf-8') as file:
        reader = csv.reader(file)
        for row in reader:
            # 处理每一行数据
            process_row(row)

def process_row(row):
    # 处理单行数据的逻辑
    pass