Question

我在Python中具有以下代码，用于从in_folder文件夹的csv文件中删除第一行，然后将其保存在out_folder文件夹中。现在，我需要删除 csv文件的第一列。有谁知道该怎么做？

import csv
import glob
import os
import shutil

path = 'in_folder/*.csv'
files=glob.glob(path)

#Read every file in the directory

x = 0 #counter

for filename in files:

    with open(filename, 'r') as fin:
        data = fin.read().splitlines(True)

        with open(filename, 'w') as fout:
            fout.writelines(data[1:])
            x+=1
            print(x)

dir_src = "in_folder"
dir_dst = "out_folder"


for file in os.listdir(dir_src):
    if x>0:
        src_file = os.path.join(dir_src, file)
        dst_file = os.path.join(dir_dst, file)
        shutil.move(src_file, dst_file)

Answer 1

您可以做的是使用Pandas，因为它可以实现DataFrame操作。

file.csv

1,2,3,4,5
1,2,3,4,5
1,2,3,4,5

您的代码应类似于

import pandas as pd
df = read_csv('file.csv')
# If you know the name of the column skip this
first_column = df.columns[0]
# Delete first
df = df.drop([first_column], axis=1)
df.to_csv('file.csv', index=False)

file.csv

2,3,4,5
2,3,4,5
2,3,4,5

从Python中的csv文件中删除第一列

1 个答案: