Question

我有一个csv文件，其条目如下：

00020000001000,gl3.h5,2,5,0,0,0,"1:15:29 PM",60.2350934,-138.29382304 etc.
00020010000000,gl3.h5,2,8,0,0,0,"1:16:24 PM",60.09523934,-138.2322304 etc.
00020000100000,gl3.h5,2,11,0,0,0,"1:17:05 PM",60.0345934,-138.2932582304 etc.
00020000000100,gl3.h5,2,4,0,0,0,"1:18:19 PM",60.090934,-138.2235382304 etc.

现在，我想按第3列中的整数对此文件中的行进行排序（例如，第一行中为5，第二行中为8。

到目前为止我的代码看起来像：

import csv
with open("line 1.csv", "rb") as f:
    reader = csv.reader(f, delimiter = ",")
    sort = sorted(reader, key=lambda x: int(x[3]), reverse=True)
    print(sort)

但是当我运行代码时，它会显示IndexError: list index out of range"。

为什么分隔符,不起作用？

谢谢！

Answer 1

你的csv中可能有空行。过滤掉它们：

import csv
with open("line 1.csv", "rb") as f:
    reader = csv.reader(f, delimiter = ",")
    data = [entry for entry in reader if entry]
    sort = sorted(data, key=lambda x: int(x[3]), reverse=True)
    print(sort)

拆分csv文件的分隔符在Python中不起作用

1 个答案: