Python读取CSV文件，并写入其他跳过列 [英] Python read CSV file, and write to another skipping columns

问题描述

我有18列的CSV输入文件 我需要使用输入的所有列(第4列和第5列除外)创建新的CSV文件

I have CSV input file with 18 columns I need to create new CSV file with all columns from input except column 4 and 5

我的功能现在看起来像

def modify_csv_report(input_csv, output_csv):
    begin = 0
    end = 3

    with open(input_csv, "r") as file_in:
        with open(output_csv, "w") as file_out:
            writer = csv.writer(file_out)
            for row in csv.reader(file_in):
                writer.writerow(row[begin:end])
    return output_csv

因此它读写第0-3列，但我不知道如何跳过第4,5列并从那里继续

So it reads and writes columns number 0 - 3, but i don't know how skip column 4,5 and continue from there

推荐答案

这就是您想要的:

import csv


def remove_csv_columns(input_csv, output_csv, exclude_column_indices):
    with open(input_csv) as file_in, open(output_csv, 'w') as file_out:
        reader = csv.reader(file_in)
        writer = csv.writer(file_out)
        writer.writerows(
            [col for idx, col in enumerate(row)
             if idx not in exclude_column_indices]
            for row in reader)

remove_csv_columns('in.csv', 'out.csv', (3, 4))

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