Python读取列直到行尾

Question

我必须从csv中读取从第四列开始的所有列。例如，从第[4]行到第行末尾。你知道我是怎么做到的吗

for col in range(4,row):
            covid.addCell(row[col])

Answer 1

csv.reader以列表的形式返回行，因此您可以slice每行获取从第四列到最后一列的列列表

import csv

with open('mycsv.csv', newline='') as f:
    reader = csv.reader(f)
    for row in reader:
        chunk = row[3:]
        # do something with chunk (which is a list)

Answer 2

到目前为止你试过什么？您的代码/尝试在哪里

import pandas as pd

df = pd.read_csv("XXX.csv")
df_selected = df.iloc[ :, 3: ] # from 4th column, reminder: in python we count from 0