使用 Python 如何从 .csv 文件中的“n”列中获取字符串的出现次数

Question

I am new to python and my test report is a .csv file like this :

Stream play pause seek
1.mp3 PASS FAIL FAIL
1.ac3 PASS PASS FAIL
2.mp3 FAIL PASS PASS
3.mp3 PASS PASS FAIL
4.mp4 FAIL FAIL PASS

I want to get total number of "PASS" from all the columns.

结果应该是： 总测试数：15 通过次数：8 失败次数：7

请建议如何从“play”、“pause”和“seek”列中提取字符串“PASS”。

Answer 1

我可以使用 pandas 模块来做到这一点。 这是下面的代码：

import pandas as pd
pdread = pd.read_csv(csv_file)
for i in xrange(1,3,1):
    count = collections.Counter(pdread['play'])
    for (k,v) in collections.Counter(count).iteritems():
        #K here is either "PASS" or "FAIL"
        print k
        #v is count
        print v