Using the lowercase function with CSV rows

问题

I'm trying to print all data from a csv in lowercase, but I'm not having any luck.

Here's what I have so far:

import csv
books = csv.reader(open("books.csv","rb"))

for row in books:
    print row

This prints all the content of the csv, but when I add the .lower() function, I get errors.

What am I doing wrong?

回答1:

Try

print [r.lower() for r in row]

来源：https://stackoverflow.com/questions/8265648/using-the-lowercase-function-with-csv-rows