如何计算csv文件中的特定数据并在python中打印该数字？

Question

For example, If i wanted to count the number of males in the 'sex' column and print that number in python. How would I do that?

Answer 1

import csv

pf = open("yourcsv.csv", "r")

read = csv.reader(pf)

male_count = 0
for r in read:
    if r[1] == 'Male':
        male_count += 1
pf.close()

print("Male count: {}".format(male_count))

Answer 2

Given my_csv.csv

id,name,sex
1,aaa,m
2,bbb,m
3,bbb,f
4,bbb,f
5,bbb,m
6,bbb,m

You can count the number of males with:

import pandas as pd
df = pd.read_csv('my_csv.csv')
print(df['sex'].value_counts()['m']) # prints 4