使列表索引超出读取CSV的范围

Question

我正在编写一个代码，以读取csv文件并从列表中找到值，然后使用“ ABCD”对其进行更新。 我尝试使用编解码器读取csv，但没有运气。

    import csv
    import codecs
    Testnumber = ['xxxxxxxxx','yyyyyyy']
    i =0
    is_in_file = "BLACK LISTED NUMBER NOT FOUND IN THIS BASE"
    with open('D1_SD_ROI.csv', 'rb') as csvfile:
        my_content = csv.reader(csvfile, delimiter=' ')
        for row in my_content:
              for A in row:
                  i=i+1 #couting number of loops eventually row number
                  for B in Testnumber:
                      if A == B:
                         print B
                         print i
                         r = csv.reader(csvfile)
                         lines = list(r)
                         lines[i-1][0] = 'ABCD'
                         writer = csv.writer(open('D1_SD_ROI.csv', 'w'))
                         writer.writerows(lines)
    print ("D1_SD_ROI")
    print is_in_file

我遇到此错误：

  

回溯（最近一次通话最后一次）：文件“ sun.py”，第53行，在       lines [i-1] [0] ='ABCD'IndexError：列表索引超出   范围