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)