将Python计数器导出到.CSV文件

Question

我有打开和读取文本文件的脚本，分隔每个单词并列出这些单词。 我让Counter对列表中的每个单词计数了多少次。 然后，我想在.csv文件中导出每一行，如下所示：

单词你好出现10次

字屋出现5次

单词树出现3次

...等等

您能告诉我在这里需要什么更改才能使脚本起作用吗？

from collections import Counter
import re
import csv

cnt = Counter()

writefile = open('test1.csv', 'wb')
writer = csv.writer(writefile)


with open('screenplay.txt') as file:       #Open .txt file with text
    text = file.read().lower()
    file.close()
    text = re.sub('[^a-z\ \']+', " ", text)
    words = list(text.split())             #Making list of each word
    for word in words:
        cnt[word] += 1                     #Counting how many times word appear
        for key, count in cnt.iteritems():
            key = text
            writer.writerow([cnt[word]]) 

Answer 1

最大的问题是，每个单词的每次出现都会发生第二个for循环，而不仅仅是每个唯一单词一次。 您需要降低整个循环的凹痕，以便在您完成计数后执行。 尝试这样的事情：

from collections import Counter
import re
import csv

cnt = Counter()

writefile = open('test1.csv', 'wb')
writer = csv.writer(writefile)


with open('screenplay.txt') as file:
    text = file.read().lower()
    text = re.sub('[^a-z\ \']+', " ", text)
    words = list(text.split())
    for word in words:
        cnt[word] += 1
    for key, count in cnt.iteritems(): #De-dent this block
        writer.writerow([key,count]) #Output both the key and the count

writefile.close() #Make sure to close your file to guarantee it gets flushed