如何在python中删除csv行中的重复单词？

import csv
from collections import OrderedDict

def remove_duplicates(input_file, output_file):
    with open(input_file, 'r') as file:
        reader = csv.reader(file)
        rows = list(reader)
        header = rows[0]
        data = rows[1:]

        # 使用有序字典来保持单词的顺序
        unique_data = OrderedDict()

        for row in data:
            word = row[0]

            # 如果单词不在字典中，则将其添加到字典中
            if word not in unique_data:
                unique_data[word] = row

        # 将数据写入新的CSV文件
        with open(output_file, 'w', newline='') as file:
            writer = csv.writer(file)
            writer.writerow(header)
            writer.writerows(unique_data.values())

input_file = 'input.csv'
output_file = 'output.csv'
remove_duplicates(input_file, output_file)