使用 DictReader 在 Python 中获取 CSV 文件的最后一行

Question

Didn't manage to find any answer for that, I prefer to use DictReader and still be able to reach last line of CSV File efficiently, any thoughts?

Answer 1

if you keep the values in a list you can try "-1"

list[-1]

Answer 2

Just iterate the file... The last line will be in the loop variable:

import csv

with open("test.csv") as f:
    reader = csv.DictReader(f)
    for line in reader:
        pass

print(line)

Answer 3

This piece of code will do the required thing for you efficiently

with open("test.csv", "r") as f:
    last_line = f.readlines()[-1]
    print(last_line)