在python中读取csv数据为整数 [英] read csv data as integer in python

问题描述

我有一个包含以下格式数据的 csv 文件

I have ancsv file with the data in the following format

1 ，F，1,10,48067
2，M，56,16,70072
3，M，25,15,55117
4，M，45,7,02460
5，M，25,20,55455
6，F，50,9,55117
7，M，35,1,06810
8，M，25,12,11413
9，M，25,17,61614


现在我想读取每行并存储一行一个列表，并将M转换为1和F转换为0.这可以在python中完成

now i want to read each line and store one row in a list and also convert M to 1 and F to 0. How can this be done in python

类似

temp = [1,0,25,17,2414]

temp = [1,0,25,17,2414]

推荐答案

像这样：

import csv

result = list()
with open('filepath.csv') as f:
    reader = csv.reader(f)
    for row in reader:
        result.append(list())
        for item in row:
            if item == 'F'
                result[-1].append(0)
            elif item == 'M':
                result[-1].append(1)
            else:
                result[-1].append(item)  

b $ b

这是一个更短，更漂亮的解决方案：

Here is a shorter and a beautiful solution:

import csv

result = list()
with open('filepath.csv') as f:
    reader = csv.reader(f)
    for row in reader:
        result.append([i if (i!='F' and i!='M') else (0 if i=='F' else 1) for i in row])

注意，我没有测试代码。我只是盲目地在这里直接写。

Note that I didn't test the code. I just blindly wrote it here directly.

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