我正在读取30行的csv文件，但仅在shell中打印29行

Question

I have a csv file im reading from and returning a column of data. There is 30 rows of data and when I print the data I'm only getting 29.

def readMonth(fileName):
infile = open(fileName,"rb")
reader = csv.reader(infile)

month = []
for i in range(0,29):
    data = next(reader)
    month.append(int(float(data[25])))
infile.close()

return month

When I print I should have 30 lines not 29. What do I need to change in order to print all 30 lines?

Answer 1

for i in range(0,29):

This starts at 0 and ends at 28. Did you mean range(30) ? Though I'm not sure why you're not just looping over the reader .

Answer 2

Maybe something like this is what you're looking for?

#!/usr/local/cpython-3.3/bin/python

import csv

def readMonth(fileName):
    infile = open(fileName,"r")
    reader = csv.reader(infile)

    month = []
    for row in reader:
        month.append(int(row[0]))
    infile.close()

    return month

month = readMonth('foo.csv')

print(month)