Python Data Visualization Cookbook 2.2.2

import csv

filename = 'ch02-data.csv'
data = []

try:
    with open(filename) as f://用with语句将数据文件绑定到对象f
        reader = csv.reader(f)
        header = next(reader)//Python 3.X 用的是next()
        data = [row for row in reader]
except csv.Error as e:
    print('Error reading CSV file at line %s: %s' % (reader.line_num,e) )
    sys.exit(-1)

if header:
    print(header)
    print("=======================")
for row in data:
    print(row)