在python中将一个字典链接到另一个字典

Question

我有一本格式如下的字典：

d[class name]=(list of files)

例如：

d[earn]=(6,7,4)

其中 6.txt、7.txt 和 4.txt 是属于“earn”类的文件

现在，我需要创建另一个字典 d2，这样：

d2[earn]=(12,3,2,17)

在哪里

• 12是“earn”这个词在6.txt中出现的次数，
• 3是“earn”这个词在7.txt中出现的次数，
• 4是“earn”这个词在4.txt中出现的次数
• 17 是单词“earn”在所有三个文件中出现的次数，即；总和。

这是我的代码：

import collections
import sys
import os
import re
sys.stdout=open('dictionary.txt','w')
from collections import Counter
from glob import glob


folderpath='d:/individual-articles'
counter=Counter()

with open('topics.txt') as f:
    d= collections.defaultdict(list)
    for line in f:
        value, *keys = line.strip().split('~')
        for key in filter(None, keys):
            d[key].append(value+".txt")

filepaths = glob(os.path.join(folderpath,'*.txt'))

def words_generator(fileobj):
    for line in fileobj:
        for word in line.split():
            yield word
word_count_dict = {}
for file in filepaths:
    f = open(file,"r")
    words = words_generator(f)
    for word in words:
        if word not in word_count_dict:
              word_count_dict[word] = {"total":0}
        if file not in word_count_dict[word]:
              word_count_dict[word][file] = 0
        word_count_dict[word][file] += 1              
        word_count_dict[word]["total"] += 1        
for k in word_count_dict.keys():
    for filename in word_count_dict[k]:
        if filename == 'total': continue
        counter.update(filename)

for word, counts in word_count_dict.items():
    print(word, counts['total'])

我需要打印 d2，但我的代码不起作用。

Answer 1

我认为这应该可以满足您的需求：

from collections import defaultdict
d2 = defaultdict(list)
for word,files in d.items():
    for fname in files: #go over each file name in the 'list' which was associated with the key 'word' in d
        with open(fname) as f: 
            d2[word].append(f.read().count(word)) #add the count of the word in the file
           #d2[word].append(f.read().split().count(word)) use this if you want words not occurances of 'word' in the file
    d2[word].append(sum(d2[word])) #add the sum of all the counts
print d2