如何 return 给定 .csv 文件的值的总和？

Question

我有一个这样的 .csv 文件，它包含单词和值：

string1, 102, 90, 23
string2, 89, 45, 21
...
hi, 1, 3, 5
example, 2, 0, 2
someone, 1, 1, 1
hope, 0, 0, 0
stringN, 923, 23892, 9292
stringnN-1, 2903, 49058, 4859

还有一大堆像这样的单词：

lis__ = [[Hi this is an example, this site is nice!.],...,[I hope someone can help]]

如何 return 出现在 lis__ 中的每个单词的值的总和。对于上述实例，输出将是这样的：

对于第一个子列表：

    [Hi this is an example, this site is nice!.]

In:
    hi, 1, 3, 5
    example, 2, 0, 2
    someone, 1, 1, 1
    hope, 0, 0, 0

Then add value one with value one, two with two and three with three:

Out:
[(3,3,7)]

然后为第二个子列表添加值 1 和值 1，2 和 2，3 和 3：

In:
    [I hope someone can help]
    hi, 1, 3, 5
    example, 2, 0, 2
    someone, 1, 1, 1
    hope, 0, 0, 0
out:
    [(1,1,1)]

最后：

[(3,3,7),...,(1,1,1)]

其中 ... 是无限的字符串或元组。可能这个任务可以用 csv 模块来完成，知道如何处理这个吗？提前谢谢大家！

Answer 1

怎么样：

import csv
import re

class Score(object):
    def __init__(self, *args):
        self.lst = args

    def __repr__(self):
        return str(tuple(self.lst))

    def __iadd__(self, other):
        new = [self.lst[i] + other.lst[i] for i in range(3)]
        return Score(*new)


lis__ = [
    'Hi this is an example, this site is nice!.',
    'I hope someone can help',
]

# Build word_scores dictionary, keyed by word
word_scores = {}
with open('yourcsv.csv') as f:
    reader = csv.reader(f)
    for line in reader:
        word_scores[line[0].lower()] = Score(*map(int, line[1:]))


# Loop over lis__, computing the total score for each element (elem_score),
#    append it to line_scores
line_scores = []
for elem in lis__:
    elem_score = Score(0,0,0)
    for word in re.split(r'[^\w]+', elem):
        try:
            score = word_scores[word.lower()]
            print("  Found: %s %s" % (word.lower(), score))
            elem_score += score
        except KeyError:
            pass
    print("%s : %s" % (elem_score, elem))
    line_scores.append(elem_score)

print
print "Line Scores:"
print line_scores

输出：

  Found: hi (1, 3, 5)
  Found: example (2, 0, 2)
(3, 3, 7) : Hi this is an example, this site is nice!.
  Found: hope (0, 0, 0)
  Found: someone (1, 1, 1)
(1, 1, 1) : I hope someone can help

Line Scores:
[(3, 3, 7), (1, 1, 1)]

如何 return 给定 .csv 文件的值的总和？

How to return the sum of the values for a given .csv file?

python

csv

parsing

list

python-2.7