如何修复python中的零除错误？

Question

import osimport reimport syssys.stdout=open('f1.txt','w')from collections import Counterfrom glob import globdef removegarbage(text):    text=re.sub(r'\W+',' ',text)    text=text.lower()    return textfolderpath='d:/induvidual-articles'counter=Counter()filepaths = glob(os.path.join(folderpath,'*.txt'))num_files = len(filepaths)with open('topics.txt','r') as filehandle:    lines = filehandle.read()    words = removegarbage(lines).split()   counter.update(words)for word, count in counter.most_common():    probability=count//num_files    print('{}  {} {}'.format(word,count,probability))我得到零除法错误：行概率= count // num_files的浮点除以零我该如何纠正？我需要我的输出格式为：单词，计数，概率

Answer 1

您的num_files变量为0。

检查是否folderpath='d:/induvidual-articles'正确（induvidual拼写错误，但原始目录可能类似地拼写错误）。

Answer 2

检查路径是否存在。如果是这样，请检查目录是否包含至少1个.txt文件。并将整个for循环移至if块内

if num_files:

    for word, count in counter.most_common():

       ...

else:

   print "No text files found!"