如何在Python CSV模块中查找特定的行 [英] How to find specific row in Python CSV module

问题描述

我需要找到第4列到CSV文件末尾的第三行.我该怎么做?我知道我可以从第4列找到值 行[3] 但是我该如何获得第三行呢?

I need to find the third row from column 4 to the end of the a CSV file. How would I do that? I know I can find the values from the 4th column on with row[3] but how do I get specifically the third row?

推荐答案

您可以将csv阅读器对象转换为列表列表...行存储在列表中，其中包含列列表.

You could convert the csv reader object into a list of lists... The rows are stored in a list, which contains lists of the columns.

所以:

csvr = csv.reader(file)
csvr = list(csvr)
csvr[2]     # The 3rd row
csvr[2][3]  # The 4th column on the 3rd row.
csvr[-4][-3]# The 3rd column from the right on the 4th row from the end

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